PT-2025-11226 · Libexpat+13 · Libexpat+13

Jann Horn · Published 2025-03-13 · Updated 2026-03-29 · CVE-2024-8176

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Expat versions prior to 2.7.0

Description Expat is a C library used for parsing XML documents. A stack overflow vulnerability exists due to improper restriction of XML entity expansion depth. This can occur when processing XML documents with deeply nested entity references, potentially leading to a denial of service (DoS) or, in some cases, exploitable memory corruption.

Recommendations Update to Expat version 2.7.0 or later.

Fix

DoS

Stack Overflow

Uncontrolled Recursion

Weakness Enumeration

CWE-121

CWE-674

Related Identifiers

ALSA-2025:3531

ALSA-2025:3913

ALSA-2025:4048

ALSA-2025:7444

ALSA-2025:7512

AZL-58641

AZL-58671

BDU:2025-04573

CESA-2025_3913

CESA-2025_4048

CVE-2024-8176

ECHO-D644-956D-FA05

INFSA-2025_3531

INFSA-2025_3913

INFSA-2025_4048

INFSA-2025_7444

MGASA-2025-0109

MGASA-2025-0240

OESA-2025-2564

OESA-2025-2565

OESA-2025-2672

OESA-2025-2673

OESA-2025-2674

OPENSUSE-SU-2025:14952-1

OPENSUSE-SU-2025_1201-1

RHSA-2025:22033

RHSA-2025:22034

RHSA-2025:3531

RHSA-2025:3913

RHSA-2025:4048

RHSA-2025:4446

RHSA-2025:4447

RHSA-2025:4448

RHSA-2025:4449

RHSA-2025:7444

RHSA-2025:7512

RHSA-2025_3531

RHSA-2025_3913

RHSA-2025_4048

RHSA-2025_7444

SUSE-SU-2025:03239-1

SUSE-SU-2025:1186-1

SUSE-SU-2025:1201-1

SUSE-SU-2025:1295-1

SUSE-SU-2025:20207-1

SUSE-SU-2025:20311-1

SUSE-SU-2025_03239-1

SUSE-SU-2025_1186-1

SUSE-SU-2025_1201-1

SUSE-SU-2025_1295-1

USN-7424-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Debian

Ibm Aix

Linuxmint

Apple Macos

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

Libexpat

References · 186

• https://safe-surf.ru/specialists/bulletins-nkcki/723304 · Security Note
• https://errata.almalinux.org/10/ALSA-2025-7512.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:14952-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-4048.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:7512 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20207-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-04573 · Security Note
• https://osv.dev/vulnerability/CVE-2024-8176 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:22871 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0923SE17 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2025-7444.html · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2673 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2025:3531 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se38-bulletin-2026-0126SE38 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1295-1 · Vendor Advisory