[ CVE-2026-88807 · Published 21 Sep 2026 ]

Vulnerability in X.org libXrender

CVSS 8.9 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund27 Oct 2026WID-SEC-2026-4187

Red Hat Enterprise Linux (libXi, libXrender, ansible-collection-redhat-leapp) and Red Hat Build of Apache Camel for Quarkus: Multiple vulnerabilities Translated from German
Risk highCVE-2026-88807CVE-2026-68562CVE-2026-93543+3 more CVEs

[ References ]References

gitlab.freedesktop.org/xorg/lib/libxrender/-/merge_requests/19patch

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

Red Hat Enterprise Linux (libXi, libXrender, ansible-collection-redhat-leapp) and Red Hat Build of Apache Camel for Quarkus: Multiple vulnerabilities Translated from German

[ References ]References