Red Hat Linux Security Advisories & Vulnerabilities
16038 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-2026-40170] Denial of service via stack buffer overflow during QUIC handshake
Denial of service via stack buffer overflow during QUIC handshake. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): samba, ngtcp2-main. Resolved in Red Hat advisory RHSA-2026:22963 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images.
High [CVE-2025-54502] APCB SMM driver: kernel: linux-firmware: AMD APCB SMM driver: Arbitrary Code Execution via incorrect boot service use
APCB SMM driver: kernel: linux-firmware: AMD APCB SMM driver: Arbitrary Code Execution via incorrect boot service use. Red Hat rates this important (CVSS 7.5). Weakness: CWE-648. 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 Enterprise Linux.
High [CVE-2026-41082] path traversal via the .install field
path traversal via the.install field. Red Hat rates this important (CVSS 7.1). Weakness: CWE-24. 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 10.
High [CVE-2026-41035] Use-after-free vulnerability in extended attribute handling
Use-after-free vulnerability in extended attribute handling. Red Hat rates this important (CVSS 7.4). Weakness: CWE-805. Affected package(s): rsync, rhcos, discovery/discovery-ui-rhel9:1782166952. Resolved in Red Hat advisory RHSA-2026:25044 — 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 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 18 more.
High [CVE-2026-12912] Heap-based buffer overflow via crafted PixarLog-compressed TIFF image
Heap-based buffer overflow via crafted PixarLog-compressed TIFF image. Red Hat rates this important (CVSS 7.3). Weakness: CWE-122. Affected package(s): libtiff-main. Resolved in Red Hat advisory RHSA-2026:34890 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; and 11 more.
Medium [CVE-2026-40253] Information disclosure and Denial of Service via malformed BER-encoded cryptographic objects
Information disclosure and Denial of Service via malformed BER-encoded cryptographic objects. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-125. Affected package(s): opencryptoki. Resolved in Red Hat advisory RHSA-2026:26352 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.
Medium [CVE-2026-27820] Memory corruption via buffer overflow in Zlib::GzipReader
Memory corruption via buffer overflow in Zlib::GzipReader. Red Hat rates this moderate (CVSS 5.6). Weakness: CWE-131. Affected package(s): ruby4, ruby3. Resolved in Red Hat advisory RHSA-2026:7307 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-6732] Denial of Service via crafted XSD-validated document
Denial of Service via crafted XSD-validated document. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-843. Affected package(s): libxml2-main. Resolved in Red Hat advisory RHSA-2026:11503 — 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 4 more.
Low [CVE-2026-41080] Denial of Service via hash flooding with crafted XML
Denial of Service via hash flooding with crafted XML. Red Hat rates this low (CVSS 3.7). Weakness: CWE-331. Affected package(s): expat-main. Resolved in Red Hat advisory RHSA-2026:11004 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-6388] Cross-Namespace Privilege Escalation via insufficient namespace validation
Cross-Namespace Privilege Escalation via insufficient namespace validation. Red Hat rates this important (CVSS 9.1). Weakness: CWE-1220. 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 OpenShift GitOps.
Critical [CVE-2026-6308] Out of bounds read in Media
Out of bounds read in Media. Red Hat rates this important (CVSS 9.6). Weakness: CWE-125. 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.
Critical [CVE-2026-6306] Heap buffer overflow in PDFium
Heap buffer overflow in PDFium. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-6299] Use after free in Prerender
Use after free in Prerender. Red Hat rates this important (CVSS 9.6). Weakness: CWE-825. 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.
Critical [CVE-2026-6311] Uninitialized Use in Accessibility
Uninitialized Use in Accessibility. Red Hat rates this important (CVSS 9). Weakness: CWE-824. 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.
Critical [CVE-2026-6296] Heap buffer overflow in ANGLE
Heap buffer overflow in ANGLE. Red Hat rates this critical (CVSS 9.6). Weakness: CWE-131. 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.
Critical [CVE-2026-6301] Type Confusion in Turbofan
Type Confusion in Turbofan. Red Hat rates this important (CVSS 9.6). Weakness: CWE-843. 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.
Critical [CVE-2026-6316] Use after free in Forms
Use after free in Forms. Red Hat rates this important (CVSS 9.6). Weakness: CWE-825. 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.
Critical [CVE-2026-6310] Use after free in Dawn
Use after free in Dawn. Red Hat rates this important (CVSS 9). Weakness: CWE-825. 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.
Critical [CVE-2026-6359] Use after free in Video
Use after free in Video. Red Hat rates this important (CVSS 9). Weakness: CWE-825. 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.
Critical [CVE-2026-6362] Use after free in Codecs
Use after free in Codecs. Red Hat rates this important (CVSS 9.6). Weakness: CWE-825. 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.
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