PT-2026-25631 · Libexpat+2 · Libexpat+2

Hartwork · Published 2026-01-01 · Updated 2026-05-26 · CVE-2026-32777

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.7.5

Description The software contains a flaw where parsing DTD content can lead to an infinite loop.

Recommendations Update libexpat to version 2.7.5 or later.

Fix

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

BDU:2026-07264

CVE-2026-32777

ECHO-1645-A8DE-A79E

MGASA-2026-0061

OESA-2026-1736

OESA-2026-1882

OESA-2026-1883

OESA-2026-1884

OESA-2026-1885

OESA-2026-1886

OPENSUSE-SU-2026:10466-1

OPENSUSE-SU-2026:10620-1

OPENSUSE-SU-2026:10642-1

OPENSUSE-SU-2026:20448-1

OPENSUSE-SU-2026:20674-1

OPENSUSE-SU-2026:20769-1

SUSE-SU-2026:1137-1

SUSE-SU-2026:1159-1

SUSE-SU-2026:1166-1

SUSE-SU-2026:1352-1

SUSE-SU-2026:1742-1

SUSE-SU-2026:1817-1

SUSE-SU-2026:1870-1

SUSE-SU-2026:1956-1

SUSE-SU-2026:20963-1

SUSE-SU-2026:20985-1

SUSE-SU-2026:21031-1

SUSE-SU-2026:21062-1

SUSE-SU-2026:21545-1

Affected Products

Ibm Aix

Red Os

Libexpat

References · 73

• https://github.com/libexpat/libexpat/pull/1162 · Patch
• https://github.com/libexpat/libexpat/pull/1159 · Patch
• https://github.com/libexpat/libexpat/issues/1161 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-32777 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-1886 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20985-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-07264 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:21031-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-32777 · Security Note
• https://osv.dev/vulnerability/OESA-2026-1736 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1166-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-32777 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-32777 · Security Note
• https://ubuntu.com/security/CVE-2026-32777 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1352-1 · Vendor Advisory