Red Hat Linux Red Hat Enterprise Linux Vulnerabilities & Security Advisories
1225 advisories tracked · Red Hat Security Data API · 3 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as Red Hat Enterprise Linux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 31 critical, 785 high, 384 medium, 25 low.
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Red Hat Security Data API
Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.
Latest Linux Red Hat Enterprise Linux advisories
Low [CVE-2026-53540] Negative Content-Length in parse_form buffers the entire body in memory
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.31, parse_form() did not validate the Content-Length header before using it to bound its chunked read of the request body. A negative Content-Length turned the bounded read into a read-until-EOF, so the entire body was loaded into memory in a single read instead of in fixed-size chunks. The realistic exposure is limited to bespoke WSGI or http.server handlers that forward raw client headers directly into parse_form(). Common frameworks such as Starlette and FastAPI do not call parse_form() directly and are not affected by this specific code path. 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-400. Affected Red Hat products: Exploit Intelligence; Migration Toolkit for Applications 8; OpenShift Lightspeed; Red Hat AI Inference Server; Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat OpenShift Virtualization 4; Red Hat Satellite 6. Red Hat lists OpenShift Lightspeed; Red Hat Hardened Images as not affected. Red Hat does not currently list a fixing RHSA for this CVE.
Low [CVE-2026-53537] Information disclosure via header parsing discrepancy
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, parse_options_header parsed Content-Disposition (and Content-Type) headers with email.message. Message, which transparently applies RFC 2231/5987 decoding. The extended parameter syntax (filename*=charset'lang'value, name*=..., and the filename*0/filename*1 continuation form) is decoded and surfaced under the bare filename/name key, and overrides the plain parameter when both are present. RFC 7578 §4.2 explicitly forbids the filename* form in multipart/form-data. Components that follow RFC 7578, or that do not implement RFC 2231/5987 decoding for multipart/form-data (WAFs, proxies, gateways), may interpret such a header differently. An attacker can exploit that difference to smuggle a different field name or filename past an upstream inspector to the backend. This vulnerability is fixed in 0.0.30. This vulnerability allows a remote attacker to bypass security controls by exploiting a difference in how Content-Disposition and Content-Type headers are parsed. Specifically, the parse_options_header function incorrectly applies RFC 2231/5987 decoding, which is forbidden for multipart/form-data. Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N). Weakness: CWE-1286.
Low [CVE-2026-54276] Information disclosure via DigestAuthMiddleware after cross-origin redirect
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, DigestAuthMiddleware can send an authentication response after following a cross-origin redirect. This likely requires an open redirect vulnerability or similar on the target domain for an attacker to be able to execute. Further, the attacker is only receiving the digest, so should only be able to extract the user's credentials if the cryptography is weak or there is some kind of password reuse. This vulnerability is fixed in 3.14.1. This could allow a remote attacker, in conjunction with an open redirect vulnerability on the target domain, to potentially extract a user's credentials if weak cryptography is used or if there is password reuse. This vulnerability primarily leads to information disclosure. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N). Weakness: CWE-940. Affected Red Hat products: Exploit Intelligence; Migration Toolkit for Applications 8; OpenShift Lightspeed; Red Hat AI Inference Server; Red Hat Ansible Automation Platform 2; Red Hat Ansible Automation Platform Ansible Core 2; Red Hat Discovery 2; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat Satellite 6. Red Hat lists Red Hat Hardened Images as not affected. Red Hat does not currently list a fixing RHSA for this CVE.
Low [CVE-2026-5419] Information disclosure via timing side-channel in PKCS#7 padding removal
Information disclosure via timing side-channel in PKCS#7 padding removal. Red Hat rates this low (CVSS 3.7). Weakness: CWE-208. Affected package(s): rhui5/haproxy-rhel9:1781525671, gnutls, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952, discovery/discovery-server-rhel9:1782159791. Resolved in Red Hat advisory RHSA-2026:20613 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Discovery 2; and 4 more.
Low [CVE-2025-6170] Libxml2: stack buffer overflow in xmllint interactive shell command handling
A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Hardened Images; Red Hat Enterprise Linux 9; and 2 more. Affected products named by the advisory: Red Hat JBoss Core Services; Red Hat OpenShift Container Platform 4. Affected products named by the advisory: Red Hat Update Infrastructure 5; Red Hat Discovery 2.