Red Hat Linux Security Advisories & CVEs
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Latest Linux advisories
Medium [CVE-2025-61027] openlink virtuoso-opensource: Denial of Service via crafted SQL statements
An issue in the t_set_push component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements. An attacker can exploit this vulnerability by sending specially crafted SQL statements to the t_set_push component. This can lead to a Denial of Service (DoS), making the system unavailable to legitimate users. Although `virtuoso-opensource` is shipped with RHEL 7 Extended Lifecycle Support (ELS), the vulnerable code is completely absent from the package. Therefore, Red Hat products are not impacted by this vulnerability. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-89. Red Hat lists Red Hat Enterprise Linux 7 as not affected.
Medium [CVE-2025-61022] openlink virtuoso-opensource: Denial of Service via crafted SQL statements
An issue in the sqlo_tb_col_preds component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements. This can lead to the unavailability of the service. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-89. Affected Red Hat products: Red Hat Enterprise Linux 7. Will not fix / out of support: Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2025-61019] Denial of Service via crafted SQL statements
An issue in the sqlo_key_part_best component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements. This vulnerability allows an attacker to disrupt the availability of the service. Moderate: This denial of service flaw in virtuoso-opensource does not affect Red Hat Enterprise Linux 7 as the vulnerable code is not present in the shipped package. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-89. Red Hat lists Red Hat Enterprise Linux 7 as not affected.
Medium [CVE-2025-61024] Denial of Service via crafted SQL statements in sqlo_try_in_loop
An issue in the sqlo_try_in_loop component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements. An attacker could send specially crafted SQL (Structured Query Language) statements to a specific component, `sqlo_try_in_loop`, leading to a Denial of Service (DoS). This could make the service unavailable to legitimate users. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-606. Affected Red Hat products: Red Hat Enterprise Linux 7. Will not fix / out of support: Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-13083] stored XSS via unescaped cluster data in HTML report
A flaw was found in the Pen Drive report generator. Cluster-sourced data is rendered into HTML reports without proper escaping or sanitization. An attacker with cluster administrator privileges can inject a stored cross-site scripting (XSS) payload into cluster objects (such as ClusterVersion spec.channel) that executes in the browser of any user who opens the generated HTML report. This flaw affects Pen Drive versions prior to 1.0.0-2. The vulnerability requires cluster administrator privileges to inject the XSS payload and user interaction (opening the report) for exploitation, limiting the attack surface. Red Hat severity: Moderate — CVSS 6.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N). Weakness: CWE-79. Affected Red Hat products: Pen Drive Powered by Red Hat Lightspeed. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-47729] memory disclosure in FTP gateway
Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6. To exploit this issue, an attacker must have a valid account on the Squid proxy and must also control an FTP server reachable from the proxy on port 21. The impact is limited to information disclosure of cleartext HTTP request contents or traffic in TLS-terminating (SSL bump) proxy configurations where Squid decrypts and inspects traffic. FTP protocol usage has declined considerably in most environments since major browsers removed FTP support, further narrowing the practical attack surface. Due to these reasons, this vulnerability has been rated with a moderate severity. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.
Medium [CVE-2026-50012] memory corruption in cache_digest reply handling
Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may be larger than the mask_size declared within the digest, so a trusted peer sending a maliciously crafted reply to a cache_digest request message can trigger the overflow. This attack is limited to Squid instances compiled with the --enable-cache-digests option and configured with cache_peer entries. This issue is fixed in version 7.6. A flaw was found in Squid. This issue allows a trusted server to cause a denial of service when sending specially crafted replies to cache_digest request messages. To exploit this issue, an attacker must control a trusted cache peer server. Also, cache digests are not enabled in the default configuration. Squid deployments that do not use cache peering are not affected. Furthermore, even those that do are only vulnerable when the attacker controls a configured peer server within the same administrative domain. A compromised peer can reliably crash the Squid process via a heap-based buffer overflow during digest exchange, but code execution faces considerable practical security barriers.
Medium [CVE-2026-13757] Stack exhaustion via unbounded recursion in RPC attribute parsing
A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. 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-674. 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-2026:37469, RHSA-2026:38342.
Low [CVE-2026-45692] Remote Admin Authorization Bypass in `/config` API via Array Index Normalization
Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv. Atoi(). This vulnerability is fixed in 2.11.3. A remote administrator with restricted access to specific configuration objects could bypass these limitations. This discrepancy allows an attacker to read and modify unauthorized configuration elements, undermining the principle of least privilege in remote administration. This Moderate-impact flaw in Caddy's remote administration API, which allows an authorization bypass due to differing interpretations of array indices, does not affect Red Hat products. The vulnerable code is not present in Red Hat's supported offerings. Red Hat severity: Moderate — CVSS 3.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N). Weakness: CWE-551. Red Hat lists Red Hat Hardened Images as not affected.
Low [CVE-2026-57062] Incorrect cryptographic message parsing
CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182. By accepting an authentication tag length of 4 bytes instead of the required 12 bytes, this vulnerability allows for a low-impact data integrity issue where the cryptographic validity of messages could be compromised. A Low-impact flaw in GnuPG's gpgsm component accepts an incorrect AES-GCM authentication tag length in CMS messages. This compromises cryptographic data integrity, though confidentiality and availability are unaffected. Red Hat severity: Low — CVSS 2.9 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N). 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 Hardened Images. 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.
Low [CVE-2026-56376] Denial of Service via heap use-after-free vulnerability
ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service. A flaw was found in ImageMagick. This ImageMagick flaw is rated as Low impact. The impact is limited to availability, and the attack requires specific conditions, making successful exploitation less probable in typical Red Hat deployments unless processing untrusted images. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-825. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. 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.
Critical [CVE-2026-48746] Critical authentication bypass allows unauthorized API access
Critical authentication bypass allows unauthorized API access. Red Hat rates this important (CVSS 9.1). Weakness: CWE-501. Red Hat lists fixing advisory RHSA-2026:36006 with package rhaiis/vllm-rocm-rhel9:1782353093, rhaiis/vllm-cuda-rhel9:1782352847, rhaiis/vllm-cuda-rhel9:1782951012, rhaiis/vllm-rocm-rhel9:1782951244.
Critical [CVE-2026-44727] Remote Code Execution via stored Cross-Site Scripting in nbconvert handlers
Remote Code Execution via stored Cross-Site Scripting in nbconvert handlers. Red Hat rates this important (CVSS 9). Weakness: CWE-79.
High [CVE-2026-41523] Arbitrary code execution via malicious HuggingFace model
Arbitrary code execution via malicious HuggingFace model. Red Hat rates this important (CVSS 7.5). Weakness: CWE-617. Red Hat lists fixing advisory RHSA-2026:36006 with package rhaiis/vllm-cuda-rhel9:1782951012, rhaiis/vllm-rocm-rhel9:1782951244.
High [CVE-2026-49468] Authentication Bypass via Host Header Injection
Authentication Bypass via Host Header Injection. Red Hat rates this important (CVSS 8.1). Weakness: CWE-290.
High [CVE-2026-55603] Data integrity compromise via CR/LF injection
http-proxy-middleware is node.js http-proxy middleware. From 3.0.4 until 3.0.7 and 4.1.1, fixRequestBody() is the library's documented helper for re-emitting a request body that was already consumed by a body parser. When the outgoing Content-Type is multipart/form-data, it rebuilds the body with handlerFormDataBodyData(), which interpolates each req.body key and value directly into the multipart wire format without neutralizing CR/LF. A \r\n inside a value (or key) lets an attacker close the current part and inject an entirely new form part. Because the proxy's own body parser saw a single opaque value, any gateway-side policy or validation performed on req.body is evaluated against a different set of fields than the upstream backend ultimately parses a request/parameter desynchronization across the trust boundary. This vulnerability is fixed in 3.0.7 and 4.1.1. A remote attacker could exploit a vulnerability in the fixRequestBody() function, which is used to re-emit a request body. By injecting carriage return and line feed characters (\r\n) into a request body key or value, an attacker can bypass security policies and validation performed by the proxy. This desynchronization between the proxy and the backend server can lead to a compromise of data integrity. Other Red Hat AI products are not affected or do not expose the vulnerable code path in normal operation.
High [CVE-2026-54293] Information Disclosure via Path Traversal in `nltk.data.load `
Information Disclosure via Path Traversal in `nltk.data.load()`. Red Hat rates this important (CVSS 7.5). Weakness: CWE-22.
High [CVE-2026-55388] Arbitrary code execution via prototype pollution of filename option
Arbitrary code execution via prototype pollution of filename option. Red Hat rates this important (CVSS 8.1). Weakness: CWE-915.
High [CVE-2026-54283] request.form limits silently ignored for application/x-www-form-urlencoded enable DoS
request.form() limits silently ignored for application/x-www-form-urlencoded enable DoS. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:36006 with package rhaiis/vllm-cuda-rhel9:1782951012, jaeger-main-2.19.0-1.hum1, rhaiis/vllm-rocm-rhel9:1782951244.
High [CVE-2026-48712] Denial of Service via uncontrolled recursion with crafted protobuf payload
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.1 and 8.4.1, protobufjs could recurse without a depth limit while converting decoded messages to plain objects or JSON. This affected generated toObject() conversion and the custom google.protobuf. Any JSON conversion path. This vulnerability is fixed in 7.6.1 and 8.4.1. A flaw was found in protobufjs. This uncontrolled recursion could exhaust the JavaScript call stack during conversion to JSON, leading to a Denial of Service (DoS). Red Hat rates this issue as having Low impact for Red Hat Enterprise Linux AI bootc images. Although protobufjs is present as a transitive dependency, the vulnerable parsing path is not exercised in normal product operation. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-606. Affected Red Hat products: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).