Red Hat Linux Security Advisories & CVEs
465 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
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Security advisories for your Red Hat release
Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata — keep the system patched. This is the release's advisory history, not a per-package scan.
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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 Red Hat advisories
Low [CVE-2026-104029] Sssd: sssd: denial of service via out-of-bounds read in autofs responder
A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS). Red Hat rates this vulnerability as a Low impact because exploitation is restricted to local attackers and primarily leads to responder termination or instability without granting privilege escalation or data leakage. The autofs responder in SSSD must be explicitly enabled and active for the vulnerable UNIX domain socket to be present. Additionally, any resulting crash affects only the autofs responder daemon rather than the core authentication services or entire operating system. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). 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. Will not fix / out of support: Red Hat Enterprise Linux 6. Red Hat does not currently list a fixing RHSA for this CVE.
Low [CVE-2026-105326] Cups: cups: argument injection in mailto notifier via notify-recipient-uri
An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with "-" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user. This vulnerability is rated Low because exploitation requires multiple environmental conditions beyond the CUPS code flaw alone. The vulnerable mailto notifier logic is present in CUPS packages shipped in Red Hat Enterprise Linux, but practical impact on RHEL is limited: RHEL typically provides Postfix's sendmail-compatible wrapper, which does not support the traditional sendmail -C configuration option used in public proof-of-concept chains, and many systems do not install or enable an MTA for CUPS notifications. By default, cupsd listens only on the local loopback interface unless administrators explicitly configure remote access.
Low [CVE-2026-105217] Sensitive token disclosure via disabled TLS certificate verification
Sensitive token disclosure via disabled TLS certificate verification. Red Hat rates this low (CVSS 3.7). Weakness: CWE-295. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: cockpit.
Low [CVE-2026-105083] Security policy bypass via alternate XML DOCTYPE declaration
Security policy bypass via alternate XML DOCTYPE declaration. Red Hat rates this low (CVSS 3.9). Weakness: CWE-1286. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-94483] Information disclosure via SSRF in Image Optimization
Information disclosure via SSRF in Image Optimization. Red Hat rates this low (CVSS 3.7). Weakness: CWE-918. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-94544] Information disclosure via shared cache fills in Draft Mode
Information disclosure via shared cache fills in Draft Mode. Red Hat rates this low (CVSS 3.7). Weakness: CWE-524. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-56449] Denial of Service via crafted HTTP response bodies in mod_proxy_html
Denial of Service via crafted HTTP response bodies in mod_proxy_html. Red Hat rates this low (CVSS 3.7). Weakness: CWE-787. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: httpd.
Low [CVE-2026-48005] Denial of service via forged Authorization headers in mod_auth_digest
Denial of service via forged Authorization headers in mod_auth_digest. Red Hat rates this low (CVSS 3.7). Weakness: CWE-303. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 2 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: httpd.
Low [CVE-2026-47360] Information disclosure via session cookie leakage during internal redirects
Information disclosure via session cookie leakage during internal redirects. Red Hat rates this low (CVSS 3.7). Weakness: CWE-212. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 2 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: httpd.
Low [CVE-2026-42356] arbitrary code execution via incorrect handler assignment during internal CGI redirects
arbitrary code execution via incorrect handler assignment during internal CGI redirects. Red Hat rates this low (CVSS 3.7). Weakness: CWE-430. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat package: httpd.
Low [CVE-2026-103004] Information disclosure via cache key omission in nested cache handlers
Information disclosure via cache key omission in nested cache handlers. Red Hat rates this low (CVSS 3.7). Weakness: CWE-524. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer; Red Hat package: firefox; Red Hat package: thunderbird.
Low [CVE-2026-103012] Security policy bypass via improper credential prioritization
Security policy bypass via improper credential prioritization. Red Hat rates this low (CVSS 3.3). Weakness: CWE-280. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
Low [CVE-2026-102621] Denial of Service via integer overflow in SplashClip
Denial of Service via integer overflow in SplashClip. Red Hat rates this low (CVSS 3.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:74469 with package poppler-main-26.08.0-1.2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: poppler; Red Hat package: compat-poppler022.
Low [CVE-2026-102620] Data corruption via integer overflow in FoFiTrueType::cvtSfnts
Data corruption via integer overflow in FoFiTrueType::cvtSfnts. Red Hat rates this moderate (CVSS 3.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:74469 with package poppler-main-26.08.0-1.2.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: poppler; Red Hat package: compat-poppler022.
Low [CVE-2026-102330] Incorrect authorization in SiteIsolation
Incorrect authorization in SiteIsolation. Red Hat rates this low (CVSS 3.1). Weakness: CWE-346.
Low [CVE-2026-102825] Authentication attempt limit bypass via unenforced maximum authentication attempts
Authentication attempt limit bypass via unenforced maximum authentication attempts. Red Hat rates this low (CVSS 3.7). Weakness: CWE-307. Red Hat lists fixing advisory RHSA-2026:74586 with package openshell-main-0.1.2-0.2.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Low [CVE-2026-102822] Denial of Service via improper MAC negotiation with block ciphers
Denial of Service via improper MAC negotiation with block ciphers. Red Hat rates this low (CVSS 3.7). Weakness: CWE-125. Affected product named by the advisory: Red Hat Hardened Images.
Low [CVE-2026-95316] Unchecked return value in Performance
Unchecked return value in Performance. Red Hat rates this low (CVSS 3.3). Weakness: CWE-252.
Low [CVE-2026-102635] Information disclosure via crafted GIF file
Information disclosure via crafted GIF file. Red Hat rates this low (CVSS 3.7). Weakness: CWE-908. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-35191] Traffic amplification Denial of Service via QUIC packet over-accounting
Traffic amplification Denial of Service via QUIC packet over-accounting. Red Hat rates this low (CVSS 3.7). Weakness: CWE-358. Red Hat lists fixing advisory RHSA-2026:74162 with package openssl-main-3.5.9-0.1.hum1, openssl3-main-3.5.9-0.1.hum1. Affected products named by the advisory: Red Hat Developer Hub; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 15 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat JBoss Core Services; and 11 more.