What is RHSA-2026:29811?

RHSA-2026:29811 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: libxslt security update

Which CVE IDs does RHSA-2026:29811 cover?

RHSA-2026:29811 covers the following CVE IDs: CVE-2023-40403, CVE-2025-10911. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:29811?

RHSA-2026:29811 has a CVSS v3 base score of 6.5, published by Red Hat Product Security.

Which products are affected by RHSA-2026:29811?

RHSA-2026:29811 affects 22 products, including: Red Hat Enterprise Linux AppStream E4S (v.9.2); libxslt-0:1.1.34-12.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2); libxslt-0:1.1.34-12.el9_2.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2); libxslt-0:1.1.34-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2); libxslt-0:1.1.34-12.el9_2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2); and others — see the full list on the advisory page.

RHSA-2026:29811MediumCVSS 6.5

Red Hat Security Advisory: libxslt security update

Vendor

Red Hat Product Security

Published

June 25, 2026

Last Modified

September 1, 2026

🔗 CVE IDs covered (2)

CVE-2023-40403 →CVE-2025-10911 →

📋 Description

CVE-2023-40403 — libxslt: Processing web content may disclose sensitive information CVE-2025-10911 — libxslt: use-after-free with key data stored cross-RVT

🎯 Affected products22

Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-0:1.1.34-12.el9_2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debuginfo-0:1.1.34-12.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debuginfo-0:1.1.34-12.el9_2.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debuginfo-0:1.1.34-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debuginfo-0:1.1.34-12.el9_2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debuginfo-0:1.1.34-12.el9_2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debugsource-0:1.1.34-12.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debugsource-0:1.1.34-12.el9_2.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debugsource-0:1.1.34-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debugsource-0:1.1.34-12.el9_2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-debugsource-0:1.1.34-12.el9_2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-devel-0:1.1.34-12.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-devel-0:1.1.34-12.el9_2.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-devel-0:1.1.34-12.el9_2.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-devel-0:1.1.34-12.el9_2.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
libxslt-devel-0:1.1.34-12.el9_2.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 CVE IDs covered (2)

📋 Description

🎯 Affected products22

✅ Remediation

🔗 References (5)