Red Hat Linux Security Advisories & Vulnerabilities
16039 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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, so keep the system patched. This is the release's advisory history, not a per-package scan.
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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
High [CVE-2026-5735] Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-5734] Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — 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 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-5733] Incorrect boundary conditions in the Graphics: WebGPU component
Incorrect boundary conditions in the Graphics: WebGPU component. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-5732] Incorrect boundary conditions, integer overflow in the Graphics: Text component
Incorrect boundary conditions, integer overflow in the Graphics: Text component. Red Hat rates this important (CVSS 8.8). Weakness: CWE-190. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
High [CVE-2026-5731] Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — 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 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-28808] Erlang OTP inets modules: Unauthenticated access to protected CGI scripts via incorrect authorization
Erlang OTP inets modules: Unauthenticated access to protected CGI scripts via incorrect authorization. Red Hat rates this important (CVSS 7.4). Weakness: CWE-551. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected products named by the advisory: Red Hat OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1.
High [CVE-2026-32144] Erlang OTP public_key: OCSP authorization bypass and information disclosure due to missing signature verification
Erlang OTP public_key: OCSP authorization bypass and information disclosure due to missing signature verification. Red Hat rates this important (CVSS 7.4). Weakness: CWE-347. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected products named by the advisory: Red Hat OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1; Red Hat OpenStack Platform 18.0.
High [CVE-2026-34197] RCE via crafted discovery URI in Jolokia JMX-HTTP bridge
RCE via crafted discovery URI in Jolokia JMX-HTTP bridge. Red Hat rates this important (CVSS 8.8). Weakness: CWE-78. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat JBoss Enterprise Application Platform Expansion Pack.
High [CVE-2026-5868] Heap buffer overflow in ANGLE
Heap buffer overflow in ANGLE. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-5862] Inappropriate implementation in V8
Inappropriate implementation in V8. Red Hat rates this important (CVSS 8.8). Weakness: CWE-130. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-34079] Arbitrary file deletion on host via improper cache file path validation
Arbitrary file deletion on host via improper cache file path validation. Red Hat rates this moderate (CVSS 6.7). Weakness: CWE-22. Affected package(s): flatpak. Resolved in Red Hat advisory RHSA-2026:21757 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9.
Medium [CVE-2026-39316] Denial of Service and potential arbitrary code execution via use-after-free vulnerability when deleting temporary printers.
Denial of Service and potential arbitrary code execution via use-after-free vulnerability when deleting temporary printers.. Red Hat rates this moderate (CVSS 4). Weakness: CWE-825. Affected package(s): cups-main. Resolved in Red Hat advisory RHSA-2026:8814 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-39314] Denial of Service via integer underflow in IPP attribute handling
Denial of Service via integer underflow in IPP attribute handling. Red Hat rates this moderate (CVSS 4). Weakness: CWE-191. Affected package(s): cups-main. Resolved in Red Hat advisory RHSA-2026:8814 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-35554] Information disclosure and data corruption due to race condition in producer buffer management
Information disclosure and data corruption due to race condition in producer buffer management. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-367. Affected package(s): kafka-clients. Resolved in Red Hat advisory RHSA-2026:11721 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-31790] Information Disclosure from Uninitialized Memory via Invalid RSA Public Key
Information Disclosure from Uninitialized Memory via Invalid RSA Public Key. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-824. Affected package(s): openssl, openssl-fips-provider, rhui5/haproxy-rhel9:1779798164, openssl-main, rhui5/rhua-rhel9:1779798222, openssl-fips-provider-main. Resolved in Red Hat advisory RHSA-2026:28211 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.
Medium [CVE-2026-31789] Heap buffer overflow on 32-bit systems from large X.509 certificate processing
Heap buffer overflow on 32-bit systems from large X.509 certificate processing. Red Hat rates this low (CVSS 5.8). Weakness: CWE-190. Affected package(s): openssl-main. Resolved in Red Hat advisory RHSA-2026:7261 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-28389] Denial of Service vulnerability in CMS processing
Denial of Service vulnerability in CMS processing. Red Hat rates this low (CVSS 5.9). Weakness: CWE-166. Affected package(s): openssl-main. Resolved in Red Hat advisory RHSA-2026:7261 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-28388] Denial of Service due to NULL pointer dereference in delta CRL processing
Denial of Service due to NULL pointer dereference in delta CRL processing. Red Hat rates this low (CVSS 5.9). Weakness: CWE-476. Affected package(s): openssl-main. Resolved in Red Hat advisory RHSA-2026:7261 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-28386] Denial of Service due to out-of-bounds read in AES-CFB128
Denial of Service due to out-of-bounds read in AES-CFB128. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-805. Affected package(s): openssl-main. Resolved in Red Hat advisory RHSA-2026:7261 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-5745] A NULL pointer dereference vulnerability exists in the ACL parser of libarchive
A NULL pointer dereference vulnerability exists in the ACL parser of libarchive. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-476. Affected package(s): libarchive-main. Resolved in Red Hat advisory RHSA-2026:8944 — update the affected packages (`sudo dnf update`). 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.
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