Red Hat Linux Security Advisories & CVEs
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Latest Red Hat advisories
High [CVE-2026-19496] SQL injection (CWE-89) in query parameter filtering — unsanitised user input interpolated into WHERE clause
SQL injection (CWE-89) in query parameter filtering — unsanitised user input interpolated into WHERE clause. Red Hat rates this important (CVSS 8.8). Weakness: CWE-89.
Medium [CVE-2026-12353] memory leak during https connection leads to denial of service
An unauthenticated attacker could trigger an Out of Memory condition to crash the Java process for RHCS by repeatedly sending HTTP requests to the TLS endpoint. Depending on how the RHCS server is configured, a manual intervention to restart it may prove necessary. Over time, this causes an Out of Memory condition that crashes the service. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-772. Affected Red Hat products: Red Hat Certificate System 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: dogtag-pki; Red Hat package: pki-core.
Medium [CVE-2026-65706] Arbitrary Code Execution via Crafted Video Frame
FFmpeg versions 3.0 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_swaprect video filter that allows attackers to corrupt heap memory by supplying a crafted NV12 video frame with odd width dimensions. The filter_frame() function reuses a temporary row buffer sized for plane 0's single-byte pixel step across all planes, causing an 18-byte memcpy into a 17-byte heap allocation when processing the two-byte-per-sample interleaved chroma plane of a 17x16 NV12 frame, resulting in heap corruption and process crash with potential for code execution. A flaw was found in FFmpeg. By providing a specially crafted NV12 video frame with specific dimensions, a local user can trigger a memory corruption, leading to a process crash. This could potentially result in arbitrary code execution, compromising the system's confidentiality, integrity, and availability. Red Hat Enterprise Linux has multiple layers of heap protection. NX/DEP (Non-Executable Memory) prevents code execution from heap, thus mitigating the code execution part of the exploit. 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-787. Affected Red Hat products: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-65705] Arbitrary code execution via out-of-bounds write in vf_floodfill video filter
FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_floodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinit_filter 0. When config_input() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filter_frame() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening. A flaw was found in FFmpeg. An attacker could exploit this by providing a malicious video stream, which, when processed with filtergraph reinitialization disabled, causes heap memory corruption. This can lead to a denial of service due to a process crash, and in some cases, may enable arbitrary code execution. Red Hat Enterprise Linux has multiple layers of heap protection. NX/DEP (Non-Executable Memory) prevents code execution from heap, thus mitigating the code execution part of the exploit. 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-787. Affected Red Hat products: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-65704] Heap corruption via crafted ffconcat file can lead to arbitrary code execution
FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to cause heap corruption by supplying a crafted ffconcat file processed with the -safe 0 flag. The TY demuxer's demux_audio() function decrements packet size without bounds checking, producing a negative size value that is passed to memcpy() in shorten_decode_frame(), where conversion to size_t wraps the value to near SIZE_MAX and triggers reads beyond the source allocation and writes far beyond the Shorten decoder's bitstream buffer. A flaw was found in FFmpeg. This occurs due to improper bounds checking in the TY demuxer's demux_audio() function, leading to heap corruption. Successful exploitation can result in arbitrary code execution, allowing the attacker to take control of the affected system. Red Hat Enterprise Linux has multiple layers of heap protection. NX/DEP (Non-Executable Memory) prevents code execution from heap, thus mitigating the code execution part of the exploit. 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-787. Affected Red Hat products: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-65703] Arbitrary code execution via crafted AVI file in TDSC video decoder
FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdsc_parse_tdsf() function fails to unreference the existing reference frame before calling av_frame_get_buffer(), causing tdsc_blit() and tdsc_yuv2rgb() to write attacker-controlled pixel data beyond the end of the undersized reference frame buffer, resulting in a process crash and potential code execution. A flaw was found in FFmpeg, a widely used multimedia framework. Successful exploitation can lead to a system crash and potentially enable the attacker to execute arbitrary code. Red Hat Enterprise Linux has multiple layers of heap protection. NX/DEP (Non-Executable Memory) prevents code execution from heap, thus mitigating the code execution part of the exploit. 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-787. Affected Red Hat products: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-64785] HTTP Request Smuggling and Response Splitting via Incomplete Header Validation
SwiftNIO HTTP/2 was missing validation on inbound HEADERS frames that let CR, LF, NUL, SP and other control characters reach an HTTP/1.1 backend through NIOHTTP2's HTTP/2-to-HTTP/1 codec, enabling HTTP request smuggling or response splitting. This vulnerability is addressed in swift-nio-http2 version 1.45.0. The issue stems from insufficient validation of incoming HTTP/2 HEADERS frames, which are parts of an HTTP/2 request. This allows special control characters, such as carriage return (CR) and line feed (LF), to reach an HTTP/1.1 backend, potentially bypassing security controls and enabling malicious manipulation of web requests or responses. This vulnerability in SwiftNIO HTTP/2, which could lead to HTTP request smuggling or response splitting due to incomplete header validation, does not affect Red Hat products. Red Hat's analysis indicates that the affected component is not present or not configured in a vulnerable manner within supported offerings. Red Hat severity: Low — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-93. Red Hat lists Red Hat Hardened Images as not affected.
Medium [CVE-2026-65010] Arbitrary file write via symlink following
Datasets through 5.00, fixed in commit ad2d853, contains a symlink-following vulnerability in Extractor.extract() that allows local attackers to write arbitrary files by pre-planting symlinks at predictable output paths. Attackers can redirect archive extraction to arbitrary filesystem locations in shared-cache environments, enabling overwrite of sensitive files and potential privilege escalation or code execution. A flaw was found in Hugging Face Datasets through 5.00 in Extractor.extract(). When archive contents are extracted to predictable output paths, the extractor follows pre-planted symlinks instead of confining writes to the intended directory. Datasets is vulnerable to symlink following during archive extraction in Extractor.extract(). A local attacker with low privileges who can pre-plant symlinks at predictable output paths, and who can induce extraction (user interaction), may overwrite arbitrary filesystem locations. 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-59. Affected Red Hat products: Exploit Intelligence; Lightspeed Core; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-65920] Information disclosure via path traversal vulnerability
Diffusers through 0.39.0, fixed in commit cee298c, contains a path traversal vulnerability in the _get_checkpoint_shard_files function that allows attackers to read arbitrary files by supplying malicious weight_map values in model index JSON. Attackers can use../ sequences or absolute paths in weight_map entries to escape the model directory and read safetensors files outside the intended location during model loading. A flaw was found in Diffusers. This could lead to information disclosure. Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N). Weakness: CWE-22. Affected Red Hat products: Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI). Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-16768] out-of-bounds read in ico parser
A flaw was found in gdk-pixbuf. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This vulnerability causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap content via the generated output, such as a thumbnail. The only security impact of this issue is an information leak of memory contents via the generated output, such as a thumbnail. Also, the attacker does not have full control of the information obtained, further limiting its impact. Due to these reasons, this vulnerability has been rated with a moderate severity. 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-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 does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: gdk-pixbuf2.
Medium [CVE-2026-65698] Sensitive file exfiltration via AI agent path traversal vulnerability
Void through 1.3.4 contains a path traversal vulnerability in the AI agent file-reading tools that allows network-adjacent attackers to read arbitrary host files outside the open workspace by injecting instructions into content the agent processes. Attackers can supply absolute paths or file:// URIs through the read_file, ls_dir, get_dir_tree, and search_* tools, which lack workspace confinement and bypass the approval gate, enabling silent exfiltration of sensitive files such as SSH private keys or cloud credentials via subsequent tool calls. An attacker who can inject instructions into content the agent processes may read arbitrary host files and exfiltrate sensitive data such as SSH keys or cloud credentials. A remote attacker who can get malicious instructions into agent-processed content (user interaction, high attack complexity) may read files outside the workspace via absolute paths or file:// URIs and exfiltrate them through later tool calls. Affects Void through 1.3.4. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N). Weakness: CWE-22. Affected Red Hat products: Logging Subsystem for Red Hat OpenShift; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4. Red Hat lists Red Hat Hardened Images as not affected.
Medium [CVE-2026-54422] Credential extraction from bootc container deployment via /proc/1/root
In OpenStack Ironic Python Agent through 11.5.0, a malicious bootc container, when deployed using ironic-python-agent, may be able to extract the credentials used to download it. During bootc image deployment, the OCI registry pull secret was exposed to tenant-controlled container code running with host PID namespace visibility. A malicious bootc container image could read the operator's registry credentials from the host filesystem via /proc/1/root, leading to credential disclosure. This could allow a project-scoped tenant to extract shared operator registry credentials, potentially affecting multiple nodes and projects. Red Hat OpenStack Platform ships ironic-python-agent as part of its bare metal provisioning infrastructure. Deployments that use the bootc deploy_interface are affected by this vulnerability when operator-sourced registry pull secrets are used. The bootc deployment feature was introduced in more recent versions of ironic-python-agent. Older versions of Red Hat OpenStack Platform that ship ironic-python-agent versions prior to 10.2.0 are not affected as they do not contain bootc deployment support. Red Hat severity: Important — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-522. Affected Red Hat products: Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-43823] Denial of Service due to double-free during RSA public key initialization
When initializing an RSA public key from DER or PEM bytes throws an error, the EVP_PKEY* is double-freed: first in the catch block, then in the deinit. This can lead to a crash on future memory allocations. This double-free manifests when BoringSSL cannot decode the public key from the bytes provided. This vulnerability is addressed in swift-crypto version 4.5.1. When an RSA (Rivest-Shamir-Adleman) public key is initialized from DER (Distinguished Encoding Rules) or PEM (Privacy-Enhanced Mail) formatted bytes, and an error occurs during the decoding process, a double-free vulnerability can be triggered. Red Hat severity: Moderate — CVSS 6.2 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-763. Affected Red Hat products: Red Hat Hardened Images. Red Hat fixing advisory: RHSA-2026:45784, RHSA-2026:45785.
Medium [CVE-2026-16733] bahmutov find-cypress-specs: OS Command Injection via Branch Argument Manipulation
A weakness has been identified in bahmutov find-cypress-specs up to 1.54.12. The impacted element is the function shell.exec of the file src/index.js of the component Branch Handler. This manipulation of the argument --branch causes os command injection. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet. A local attacker can exploit a vulnerability in the Branch Handler component by manipulating the '--branch' argument. This manipulation leads to an operating system (OS) command injection, allowing the attacker to execute arbitrary commands on the system. This could result in unauthorized access, modification, or disruption of data and system resources. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). Weakness: CWE-78. Affected Red Hat products: OpenShift Pipelines; Red Hat AMQ Broker 7. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-65903] Security bypass allows injection of malicious content
DOMPurify before 3.4.0 contains a logic error in the ADD_TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID_TAGS restrictions. Attackers can craft input containing tags listed in FORBID_TAGS that are also added via ADD_TAGS function, causing them to be retained in sanitized output. A flaw was found in DOMPurify. By crafting specific input, an attacker can cause tags that should be removed to remain in the sanitized output. This could lead to the injection of malicious content, potentially compromising the integrity of web pages. This Moderate flaw in DOMPurify allows an attacker to bypass content sanitization by crafting specific input, leading to the injection of malicious content. Exploitation requires user interaction, as an attacker must trick a user into processing the specially crafted input. Red Hat severity: Moderate — CVSS 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). Weakness: CWE-79. Affected products named by the advisory: Cryostat 4; Migration Toolkit for Virtualization; Multicluster Engine for Kubernetes; Node HealthCheck Operator; and 30 more. Affected products named by the advisory: OpenShift Lightspeed; OpenShift Service Mesh 3; Red Hat 3scale API Management Platform 2; Red Hat Advanced Cluster Management for Kubernetes 2; and 26 more.
Medium [CVE-2026-15037] XML injection via improper output neutralization in QDom serialization.
XML injection via improper output neutralization in QDom serialization. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-91.
Medium [CVE-2026-59677] Denial of Service via missing authorization in seunshares
A Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context This issue affects policycoreutils through 3.10. That can cause denial of service by killing critical processes. A local low-privileged user running unconfined may kill other unconfined processes, including root-owned ones, causing denial of service. Default confined SELinux setups reduce the practical attack surface. 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-266. Affected Red Hat products: Red Hat Hardened Images; 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 fixing advisory: RHSA-2026:44343. Affected products named by the advisory: Red Hat package: policycoreutils.
Medium [CVE-2026-59676] Arbitrary file deletion via TOCTOU race condition in seunshare
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in seunshare of selinux policycoreutils allows a user calling seunshare that is running in the unconfined SELinux domain to delete arbitrary root-owned files, This issue affects policycoreutils through 3.10. Removing critical system files can cause denial of service; integrity impact is limited to unauthorized deletion. Attack complexity is high. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H). Weakness: CWE-367. Affected Red Hat products: Red Hat Hardened Images; 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 fixing advisory: RHSA-2026:44343. Affected products named by the advisory: Red Hat package: policycoreutils.
Medium [CVE-2026-6390] GNU nano: Arbitrary memory writes, information disclosure, or denial of service via format string vulnerability in error handling.
A flaw was found in GNU nano's multi-buffer error message handling. When a user opens multiple files at startup and one triggers an ALERT-level error, a specially crafted filename containing printf format specifiers can be reinterpreted. This format string vulnerability may allow an attacker to achieve stack information disclosure, cause a denial of service (crash), or potentially perform arbitrary memory writes. The vulnerability affects nano versions 5.7 through 8.7 when compiled with multi-buffer support and without the NANO_TINY option. Red Hat severity: Moderate — CVSS 6.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H). Weakness: CWE-134. 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: nano.
Medium [CVE-2026-21723] Denial of Service via uncontrolled memory usage in alertmanager templates
The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled. A flaw was found in Grafana. This can lead to an Out-Of-Memory (OOM) error, causing the Grafana service to crash and resulting in a Denial of Service (DoS). This Moderate flaw in Grafana allows a remote attacker to trigger a Denial of Service by repeatedly executing alertmanager templates. While requiring low privileges, or anonymous access if enabled, the high attack complexity limits the immediate threat, as it relies on exhausting memory through mass template execution. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected Red Hat products: Red Hat Hardened Images; Multicluster Global Hub; Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat Ceph Storage 5; Red Hat Ceph Storage 6; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat lists Red Hat Hardened Images as not affected. Red Hat fixing advisory: RHSA-2026:63164, RHSA-2026:63165, RHSA-2026:65157.
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