Red Hat Linux Security Advisories & CVEs
5472 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 Linux 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 Linux advisories
Medium [CVE-2026-16473] Sbc: sbc: heap out-of-bounds read via crafted sbc audio frame
A flaw was found in the sbc library (BlueZ SBC codec). An off-by-one error in the SBC frame decoder allows a crafted audio payload to trigger a one-byte heap out-of-bounds read. This could allow an adjacent attacker streaming Bluetooth audio to read a single byte of adjacent heap memory. Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.1/AV:A/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 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE.
Medium [CVE-2026-10723] Incorrect acceptance of NSEC3 records
Incorrect acceptance of NSEC3 records. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-345.
Medium [CVE-2026-10822] Key Record using PRIVATEDNS algorithm may lead to exit
Key Record using PRIVATEDNS algorithm may lead to exit. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-617.
Medium [CVE-2026-16566] jenkins_credential module returns generated API token in plaintext output
jenkins_credential module returns generated API token in plaintext output. Red Hat rates this moderate (CVSS 6.1).
Low [CVE-2026-56444] Denial of Service due to incorrect client reply accounting with specific serve-expired configuration
Denial of Service due to incorrect client reply accounting with specific serve-expired configuration. Red Hat rates this low (CVSS 3.7). Weakness: CWE-772. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-54478] DNS Cookie security bypass via incorrect server cookie calculation
DNS Cookie security bypass via incorrect server cookie calculation. Red Hat rates this low (CVSS 3.7). Weakness: CWE-303. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-50046] Denial of Service due to freed pointer dereference in DNS-over-TLS handling
Denial of Service due to freed pointer dereference in DNS-over-TLS handling. Red Hat rates this low (CVSS 3.7). Weakness: CWE-416. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-46582] Information disclosure via DNSSEC wildcard replay
Information disclosure via DNSSEC wildcard replay. Red Hat rates this low (CVSS 3.7). Weakness: CWE-358. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-42955] DNS cache integrity issue
DNS cache integrity issue. Red Hat rates this low (CVSS 3.7). Weakness: CWE-354. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-41637] Denial of Service via terminated DNS-over-QUIC queries
Denial of Service via terminated DNS-over-QUIC queries. Red Hat rates this low (CVSS 3.7). Weakness: CWE-911. Red Hat lists fixing advisory RHSA-2026:43588 with package unbound-main-1.25.2-0.1.hum1.
Low [CVE-2026-44187] Ansible Lightspeed extension for Visual Studio Code: Information disclosure of Google Gemini API key
Ansible Lightspeed extension for Visual Studio Code: Information disclosure of Google Gemini API key. Red Hat rates this low (CVSS 3.3). Weakness: CWE-256.
High [CVE-2026-56820] Certificate revocation bypass via OCSP response replay attack
Certificate revocation bypass via OCSP response replay attack. Red Hat rates this important (CVSS 7.4). Weakness: CWE-295.
High [CVE-2026-56819] Denial of Service via HTTP/2 DATA frame memory leak
Denial of Service via HTTP/2 DATA frame memory leak. Red Hat rates this important (CVSS 7.5). Weakness: CWE-911. Red Hat lists fixing advisory RHSA-2026:47172 with package netty-codec-http2.
High [CVE-2026-56817] Information disclosure via XML External Entity (XXE) vulnerability
Information disclosure via XML External Entity (XXE) vulnerability. Red Hat rates this important (CVSS 7.5). Weakness: CWE-611.
High [CVE-2026-56746] Security control bypass allows unauthorized requests via null origin header
Security control bypass allows unauthorized requests via null origin header. Red Hat rates this important (CVSS 7.5). Weakness: CWE-807. Red Hat lists fixing advisory RHSA-2026:47172 with package netty-codec-http.
High [CVE-2026-56745] Denial of Service via memory exhaustion in SPDY-to-HTTP codec
Denial of Service via memory exhaustion in SPDY-to-HTTP codec. Red Hat rates this important (CVSS 7.5). Weakness: CWE-772. Red Hat lists fixing advisory RHSA-2026:47172 with package netty-codec-http.
High [CVE-2026-55851] Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message
Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:47172 with package netty-codec-haproxy.
High [CVE-2026-47063] Enhance Jar handling (Oracle CPU 2026-07)
Enhance Jar handling (Oracle CPU 2026-07). Red Hat rates this important (CVSS 7.5). Weakness: CWE-347. Red Hat lists fixing advisory RHSA-2026:50281 with package java-21-openjdk-1:21.0.12.0.8-1.1.el8, java-21-openjdk-1:21.0.12.0.8-1.1.el9, java-25-openjdk-windows, java-11-openjdk-1:11.0.32.0.9-1.el9. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
High [CVE-2026-47057] Improve Nashorn index handling (Oracle CPU 2026-07)
Improve Nashorn index handling (Oracle CPU 2026-07). Red Hat rates this important (CVSS 7.5). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:42882 with package java-1.8.0-openjdk-1:1.8.0.502.b07-1.1.el7_9, java-1.8.0-openjdk-1:1.8.0.502.b07-1.2.el9, java-1.8.0-openjdk-windows, java-11-openjdk-1:11.0.32.0.9-1.el7_9. Affected products named by the advisory: Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
High [CVE-2026-47058] Enhance Dataview Implementation (Oracle CPU 2026-07)
Enhance Dataview Implementation (Oracle CPU 2026-07). Red Hat rates this important (CVSS 7.4). Weakness: CWE-787. Red Hat lists fixing advisory RHSA-2026:42882 with package java-1.8.0-openjdk-1:1.8.0.502.b07-1.1.el7_9, java-1.8.0-openjdk-1:1.8.0.502.b07-1.2.el9, java-1.8.0-openjdk-windows, java-11-openjdk-1:11.0.32.0.9-1.el7_9. Affected products named by the advisory: Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.