Red Hat Linux RHEL & SELinux Vulnerabilities & Security Advisories
1664 advisories tracked · Red Hat Security Data API · 2 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as RHEL & SELinux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 34 critical, 636 high, 822 medium, 170 low.
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Latest Red Hat RHEL & SELinux advisories
Medium [CVE-2026-54371] Symlink Traversal Privilege Escalation via getfattr and setfattr
attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path. A flaw was found in the `attr` package. This Moderate severity flaw in the `getfattr` utility allows a local attacker to achieve privilege escalation. Red Hat severity: Moderate — CVSS 6.3 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N). Weakness: CWE-59. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Cert Manager support for Red Hat OpenShift release 1.19; Red Hat Discovery 2; Red Hat Hardened Images; Red Hat Update Infrastructure 5; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat OpenShift Container Platform 4. Red Hat fixing advisory: RHSA-2026:59380, RHSA-2026:56133, RHSA-2026:60226, RHSA-2026:63135, RHSA-2026:63138, RHSA-2026:61783, RHSA-2026:34889, RHSA-2026:66018. Affected products named by the advisory: Red Hat package: attr.
Medium [CVE-2026-41991] Arbitrary file overwrite via insecure temporary file handling in gzexe utility
GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user’s PATH, gzexe falls back to constructing a temporary file path based solely on the process ID (PID). This predictable filename is created without exclusive access or existence checks. A local attacker can pre‑create the predicted temporary file path as a symbolic link pointing to an arbitrary file writable by the victim. When gzexe runs, it follows the symlink and overwrites the target file, resulting in a time‑of‑check to time‑of‑use (TOCTOU) condition that allows arbitrary file overwrite. This issue has been fixed in the commit 4e6f8b24ab823146ab8776f0b7fe486ab34d4269 This can lead to a Time-of-Check to Time-of-Use (TOCTOU) condition, allowing the attacker to overwrite arbitrary files on the system. On Red Hat Enterprise Linux, mktemp is provided by coreutils which is always installed, making the vulnerable fallback code path effectively unreachable in standard deployments. Red Hat severity: Moderate — CVSS 6 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H). Weakness: CWE-59. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Discovery 2; and 7 more.
Medium [CVE-2026-13503] antlr ANTLR4: Path traversal via manipulation of getImportedVocabFile function
A vulnerability was detected in antlr ANTLR4 up to 4.13.2. Affected by this issue is the function getImportedVocabFile of the file tool/src/org/antlr/v4/parse/TokenVocabParser.java of the component tokenVocab Grammar Option Handler. The manipulation results in path traversal. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. This could allow unauthorized access to sensitive files and directories on the system. Successful exploitation requires a specific scenario where an application using ANTLR4 is configured to accept and parse untrusted, attacker-supplied grammar files containing a manipulated tokenVocab option. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-22. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: antlr; Red Hat package: grafana.
Medium [CVE-2026-58058] Denial of Service via crafted IPv6 response
Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans. A flaw was found in Nmap. This can lead to an integer underflow, causing out-of-bounds reads and a denial of service (DoS) due to a crash during raw IPv6 scans. Red Hat rates this flaw as Moderate rather than the AI-assigned Important severity. The Aegis AI-Bot rated UI:N (no user interaction), but nmap is a command-line scanning tool that an operator must manually invoke — initiating a scan is user interaction per the CVSS definition of UI:R. Correcting UI:N to UI:R reduces the CVSS from 7.5 to 6.5, aligning with the upstream CVEORG assessment. Weakness: CWE-125. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: nmap.
Medium [CVE-2026-58051] Denial of service or information disclosure via malformed SSH publickey response
libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2_publickey_list_free operating on an uninitialized entry. A malicious SSH server offering the publickey subsystem can use a malformed response to make cleanup free an uninitialized, attacker-influenceable attrs pointer in a connecting libssh2 client. A flaw in libssh2 allows a malicious SSH server to send a malformed public key response, triggering an invalid memory cleanup. This can cause the connecting client application to crash or leak information. Moderate: This flaw in libssh2 can lead to a denial of service or information disclosure in client applications when connecting to a malicious SSH server. The vulnerability arises from improper handling of uninitialized memory during public key list processing, which an attacker can trigger with a specially crafted response. Exploitation requires active interaction with a compromised or malicious server, limiting the attack surface to untrusted connections. Note: Red Hat Enterprise Linux (RHEL) 8 and newer are not affected by this flaw, as they do not ship the libssh2 package. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H). Weakness: CWE-824.
Medium [CVE-2026-48758] @sigstore/core: Signature bypass due to incorrect encoding in preAuthEncoding
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.2.1, the preAuthEncoding function in @sigstore/core uses Node.js ascii encoding when converting the PAE string to bytes, allowing payloadType to be mutated after signing without invalidating the signature and breaking the type-binding guarantee that DSSE is designed to provide. This issue is fixed in version 3.2.1. This encoding truncates Unicode characters to their low byte, allowing an attacker to substitute characters in the payloadType with Unicode variants that produce identical PAE bytes. As a result, the payloadType can be mutated after a digital signature has been applied without invalidating the signature, thereby bypassing the intended type-binding guarantee of the Digital Signature Standard for Entity Authentication (DSSE). Red Hat severity: Moderate — CVSS 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L). Weakness: CWE-347. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift Dev Spaces; Red Hat Satellite 6; Self-service automation portal 2. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: sigstore.
Medium [CVE-2026-54753] `nx graph` dev server permissive CORS policy
Nx is a monorepo solution for TypeScript and polyglot codebases. From 17.0.4 until 22.7.2 and 23.0.0-beta.2, the local HTTP server started by nx graph sent Access-Control-Allow-Origin: * on every response, letting any website a developer visited read the server's responses cross-origin — including the full project graph and the output of the /help endpoint, which runs a target's configured help command. The practical impact is typically cross-origin information disclosure, but can be arbitrary command injection in rare cases. A flaw was found in Nx, a monorepo solution for managing multiple projects. This misconfiguration allows a remote attacker to read sensitive project information, such as the full project graph, from a developer's system when they visit a malicious website. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N). Weakness: CWE-346. Affected Red Hat products: Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux 10. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: grafana.
Medium [CVE-2026-55686] Host filesystem modification via malicious container image WORKDIR symlink
Podman is a tool for managing OCI containers and pods. From 3.0.0 until 5.7.1, running a malicious container image where the WORKDIR path contains a symlink can create a directory or modify ownership on the host filesystem. Modified ownership is less likely to happen as that requires help from an untrusted/malicious process that mutates the host filesystem tree during dereferencing of the WORKDIR path, to trigger a race condition. This vulnerability is fixed in 5.7.1. A flaw was found in Podman. This can lead to the creation of a directory or modification of ownership on the host filesystem, potentially impacting system integrity. Exploitation requires the user to pull and run a specifically crafted malicious container image. Red Hat rates this as Moderate impact, consistent with the upstream assessment, because the attack requires a malicious image and the most severe outcome (ownership modification) requires additional help from an underprivileged user namespace. Red Hat severity: Moderate — CVSS 5.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N). Weakness: CWE-59. Affected Red Hat products: Red Hat Hardened Images; Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat OpenShift Virtualization 4; Red Hat Quay 3. Red Hat fixing advisory: RHSA-2026:29954.
Medium [CVE-2026-48930] Silent authority rebinding due to embedded-nul hostnames in TLS handling
A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**. A flaw was found in Node.js. This vulnerability in the TLS (Transport Layer Security) hostname handling allows embedded null characters in hostnames. This can lead to silent authority rebinding, potentially enabling an attacker to redirect network traffic to an unintended server and disclose sensitive information. The vulnerability arises from c-string truncation when processing embedded-nul hostnames in resolver bindings, potentially enabling an attacker to redirect TLS connections to a malicious server. Exploitation requires high attack complexity. Red Hat severity: Moderate — CVSS 5.6 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L). Weakness: CWE-170. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:33866, RHSA-2026:34478, RHSA-2026:35272, RHSA-2026:7378, RHSA-2026:9455. Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Medium [CVE-2026-48615] Information disclosure of proxy credentials via proxy tunnel error handling
A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages. When proxy credentials are embedded in the proxy URL, they may be exposed through error handling paths and captured by logs, diagnostics, or other error consumers. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**. A flaw was found in Node.js. This information disclosure vulnerability allows an attacker to potentially capture sensitive proxy credentials through logs, diagnostics, or other error-consuming mechanisms. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-209. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39246, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:52399, RHSA-2026:28727, RHSA-2026:29012, RHSA-2026:30172, RHSA-2026:7378, RHSA-2026:9455. Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Medium [CVE-2026-48619] Denial of Service via unlimited HTTP/2 ORIGIN frames
A flaw in Node.js HTTP/2 client allows a server to send an unlimited number of ORIGIN frames, which could lead to an Out of Memory error on the client. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**. A flaw was found in Node.js. This Moderate flaw in the Node.js HTTP/2 client can lead to a denial of service. A malicious server could exploit this by sending an excessive number of ORIGIN frames, causing the client to consume all available memory. This affects Red Hat products utilizing Node.js as an HTTP/2 client. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-770. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:33866, RHSA-2026:34478, RHSA-2026:35272, RHSA-2026:7378, RHSA-2026:9455. Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Medium [CVE-2026-48928] Trust-policy bypass due to hostname matching inconsistency
A inconsistency in Node.js hostname matching can cause a trust-policy bypass in multi-context mTLS setups. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**. A flaw was found in Node.js. An inconsistency in how Node.js matches hostnames can be exploited by a remote attacker in multi-context mTLS (mutual Transport Layer Security) setups. This vulnerability allows for a trust-policy bypass, potentially leading to unauthorized access to sensitive information or integrity compromise within the affected system. Red Hat severity: Moderate — CVSS 4.2 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-289. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:33866, RHSA-2026:34478, RHSA-2026:35272, RHSA-2026:7378, RHSA-2026:9455. Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Medium [CVE-2026-48934] Certification validation bypass in TLS host verification
A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**. A flaw was found in Node.js. This bypass could allow an attacker to intercept or alter communications, potentially leading to information disclosure or integrity compromise. Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-295. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:33866, RHSA-2026:34478, RHSA-2026:35272, RHSA-2026:7378, RHSA-2026:9455. Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Medium [CVE-2026-47770] Denial of Service via deeply nested array comparison
jq is a command-line JSON processor. Prior to 1.8.2, comparing two sufficiently deeply nested arrays with the == operator exhausts the C stack on jq's ordinary command-line surface, resulting in denial of service via stack exhaustion (uncontrolled recursion). The crash occurs in jq's recursive structural comparison code, with the recursion repeating through jvp_array_equal() and jv_equal() in src/jv.c when comparing deeply nested arrays; a nearby sort comparator path through jv_cmp() in src/jv_aux.c overflows the stack at a larger nesting depth from the same missing recursion guard. Anyone running jq comparisons on attacker-controlled deeply nested JSON values, or embedding jq in a context where untrusted data can reach the == comparison path, is affected. This vulnerability is fixed in 1.8.2. This vulnerability allows a local user or an attacker providing malicious input to cause a denial of service (DoS) by comparing two sufficiently deeply nested arrays using the '==' operator. This action exhausts the C stack due to uncontrolled recursion, leading to a crash of the jq process. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ansible Automation Platform 2; Red Hat Ceph Storage 4; Red Hat Enterprise Linux 10; and 4 more.
Medium [CVE-2026-49839] Heap out-of-bounds write via oversized raw file processing
jq is a command-line JSON processor. Prior to 1.8.2,` jq --rawfile` can turn a handled oversized-string error into invalid-state reuse and a real heap out-of-bounds write in assertion-disabled builds. When jv_load_file(raw=1) reads an attacker-controlled file, it repeatedly appends file chunks to the same jv string accumulator. Once jv_string_append_buf() returns jv_invalid_with_msg("String too long"), the raw-file loop does not stop. If the file contains at least one more byte, the next loop iteration appends a new chunk to an object that is already invalid. With assertions enabled this aborts in jvp_string_ptr(). With assertions disabled, the invalid object is interpreted as a string object and ASan reports heap-buffer-overflow. This vulnerability is fixed in 1.8.2. This vulnerability allows an attacker to trigger a heap out-of-bounds write by providing a specially crafted, oversized file to the `jq --rawfile` option. This can lead to a denial of service (DoS), making the affected system or application unavailable, and may also impact data integrity. Exploitation requires user interaction, as a user must process the malicious file. Exploitation requires a local user to explicitly process an attacker-controlled file. Red Hat severity: Moderate — CVSS 6.6 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H). Weakness: CWE-787.
Medium [CVE-2026-54679] Denial of Service via integer overflow and buffer overrun on 32-bit systems
jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2. On 32-bit systems, a local attacker could exploit an integer overflow vulnerability in the `jvp_string_append` function. This could lead to a massive buffer overrun, resulting in a denial of service (DoS) condition. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-190. Affected Red Hat products: Red Hat Hardened Images; Red Hat Ansible Automation Platform 2; Red Hat Ceph Storage 4; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4. Red Hat fixing advisory: RHSA-2026:29986. Affected products named by the advisory: Red Hat package: jq.
Medium [CVE-2026-55892] Denial of Service via crafted spell file
Vim is an open source, command line text editor. Prior to 9.2.0662, the dump_prefixes() function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (prefix[], arridx[], curi[]). A crafted.spl file, loaded when the user dumps the word list, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0662. A remote attacker could exploit this vulnerability by convincing a user to load a specially crafted spell file. This leads to a Denial of Service (DoS), making the editor unavailable to the user. A flaw was found in Vim's spell file handling. The dump_prefixes() function in src/spell.c does not validate the depth of the prefix trie against the size of fixed-size stack arrays, allowing a crafted.spl file to cause a stack out-of-bounds write and crash. Red Hat ships Vim in all RHEL versions and OpenShift CoreOS. Exploitation requires a user to load a malicious spell file and run:spelldump or spelling completion. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
Medium [CVE-2026-57451] Denial of service via crafted undo file
Vim is an open source, command line text editor. Prior to 9.2.0670, get_text_props() in src/textprop.c reads a uint16 property count stored inline after a line's text and returns it as the number of 32-byte textprop_T entries that follow. The only check is a floor that guarantees room for a single entry; the count is never checked against the amount of data actually present. A line that declares a large count while carrying little data causes consumers to read far past the end of the line buffer. Such a line can be delivered through a crafted undo file, leading to a crash. This vulnerability is fixed in 9.2.0670. A flaw in Vim allows an attacker to cause a Denial of Service (DoS) via an application crash. If a user opens a maliciously crafted undo file, an out-of-bounds read is triggered in the get_text_props() function due to missing length validation on property counts. Exploitation requires specific user interaction; the vulnerability only triggers when a local user is tricked into opening a specially crafted undo file in Vim. This limits the attack surface to scenarios where untrusted files are intentionally processed Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-125. Affected Red Hat products: Red Hat Hardened Images; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4.
Medium [CVE-2026-57452] Out-of-bounds Read with libsodium-encrypted Files
Vim is an open source, command line text editor. Prior to 9.2.0671, when Vim opens a file encrypted with the VimCrypt~04! or VimCrypt~05! method (xchacha20poly1305, requires the +sodium feature) whose body is shorter than a single libsodium secretstream header, an unsigned length calculation underflows and a subsequent decryption call reads far past the end of the input buffer, crashing Vim. This vulnerability is fixed in 9.2.0671. When opening a specially crafted encrypted file using the VimCrypt~04! or VimCrypt~05! methods, an attacker could trigger an unsigned length calculation error. This issue leads to an out-of-bounds read, causing Vim to crash and resulting in a denial of service. This Moderate impact vulnerability in Vim arises from an out-of-bounds read when processing a specially crafted libsodium-encrypted file. This issue requires user interaction to open a malformed file and the +sodium feature to be enabled, limiting its exploitability in typical Red Hat environments. Red Hat severity: Moderate — CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-125. Affected Red Hat products: Red Hat Hardened Images; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8 as not affected.
Medium [CVE-2026-57455] Denial of Service via stack out-of-bounds write in spell_soundfold_sofo
Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0698. A memory corruption flaw in Vim allows an attacker to cause a Denial of Service (DoS). When a SOFO-based spell language is active, providing an excessively long word to the spell checker triggers a stack out-of-bounds write in the spell_soundfold_sofo() function, causing the editor to crash. Exploitation requires a user to open a specially crafted file or encounter a long word via spell suggestion while a SOFO-based spell language is active, leading to a Denial of Service. This is not a default configuration in most Red Hat environments, limiting the attack surface.