Red Hat Linux Security Advisories & Vulnerabilities
16004 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-2026-10906] Use after free in WebAuthentication
Use after free in WebAuthentication. Red Hat rates this important (CVSS 8.8). 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.
High [CVE-2026-10888] Use after free in Cast Streaming
Use after free in Cast Streaming. Red Hat rates this important (CVSS 8.8). 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.
High [CVE-2026-10982] Use after free in WebXR
Use after free in WebXR. Red Hat rates this important (CVSS 8.8). 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.
High [CVE-2026-10927] Out of bounds read in Dawn
Out of bounds read in Dawn. Red Hat rates this important (CVSS 8.7). 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.
High [CVE-2026-10962] Type Confusion in Media
Type Confusion in Media. Red Hat rates this important (CVSS 8.8). 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.
High [CVE-2026-50256] stack buffer overflow in font alias resolution due to libXfont2 name length mismatch
stack buffer overflow in font alias resolution due to libXfont2 name length mismatch. Red Hat rates this important (CVSS 7.8). Weakness: CWE-121. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50257] use-after-free in miSyncDestroyFence()
use-after-free in miSyncDestroyFence(). Red Hat rates this important (CVSS 7.8). Weakness: CWE-416. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50258] stack buffer overflow in XKB key types due to unchecked shift levels
stack buffer overflow in XKB key types due to unchecked shift levels. Red Hat rates this important (CVSS 7.8). Weakness: CWE-121. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50259] stack buffer overflow in XKB SetMap request via mapWidths indexing
stack buffer overflow in XKB SetMap request via mapWidths indexing. Red Hat rates this important (CVSS 7.8). Weakness: CWE-121. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50260] use-after-free in FreeCounter()
use-after-free in FreeCounter(). Red Hat rates this important (CVSS 7.8). Weakness: CWE-416. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50261] use-after-free in SyncChangeCounter()
use-after-free in SyncChangeCounter(). Red Hat rates this important (CVSS 7.8). Weakness: CWE-416. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-50264] out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat
out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat. Red Hat rates this important (CVSS 7.8). Weakness: CWE-787. Affected package(s): xorg-x11-server, xorg-x11-server-Xwayland, tigervnc. Resolved in Red Hat advisory RHSA-2026:26562 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 8 more.
High [CVE-2026-10915] Use after free in Core
Use after free in Core. Red Hat rates this important (CVSS 8.8). 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-2026-10944] Insufficient policy enforcement in Autofill
Insufficient policy enforcement in Autofill. Red Hat rates this important (CVSS 8.8). 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-2026-10952] Use after free in Chrome for iOS
Use after free in Chrome for iOS. Red Hat rates this important (CVSS 8.8). 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-2026-42507] Golang net/textproto: Misleading error messages via input injection
Golang net/textproto: Misleading error messages via input injection. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-117. Affected package(s): rhosdt/tempo-gateway-rhel9:1782501200, rhosdt/tempo-rhel9-operator:1782501195, golang1, golang, rhosdt/tempo-rhel9:1782501196, rhosdt/tempo-jaeger-query-rhel9:1782498923. Resolved in Red Hat advisory RHSA-2026:23262 — 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-2026-33245] Cross-Site Scripting vulnerability via untrusted React Server Component redirects
Cross-Site Scripting vulnerability via untrusted React Server Component redirects. Red Hat rates this moderate (CVSS 4.2). Weakness: CWE-79. Affected package(s): rhoai/odh-mod-arch-automl-rhel9:1782722421, rhoai/odh-mod-arch-mlflow-rhel9:1782132932, rhoai/odh-mod-arch-autorag-rhel9:1782722485, rhoai/odh-mod-arch-maas-rhel9:1782722695, rhoai/odh-mod-arch-model-registry-rhel9:1782722726, rhoai/odh-mod-arch-eval-hub-rhel9:1782722438. Resolved in Red Hat advisory RHSA-2026:34456 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-28907] Processing maliciously crafted web content may prevent Content Security Policy from being enforced
Processing maliciously crafted web content may prevent Content Security Policy from being enforced. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-20. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:25918 — 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 7.
Medium [CVE-2026-28958] An app may be able to access sensitive user data
An app may be able to access sensitive user data. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-200. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:25918 — 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 7.
Medium [CVE-2026-43660] Processing maliciously crafted web content may prevent Content Security Policy from being enforced
Processing maliciously crafted web content may prevent Content Security Policy from being enforced. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-693. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:25918 — 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 7.
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