firefox: thunderbird: expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing

A memory amplification vulnerability in libexpat allows attackers to trigger excessive dynamic memory allocations by submitting specially crafted XML input. A small input 250 KiB can cause the parser to allocate hundreds of megabytes, leading to denial-of-service DoS through memory exhaustion...

Mageia: Security Advisory (MGASA-2026-0061)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Advisory ROSA-SA-2026-3235

software: expat 2.7.4 OS: ROSA-CHROME unaffected versions = expat-2.7.4-1 affected versions expat-2.7.4-1 CVE-ID: CVE-2026-24515 BDU-ID: None CVE-Crit: LOW CVE-DESC.: In libexpat before 2.7.4, the XMLExternalEntityParserCreate function does not copy custom handler data of unknown encoding...

Updated expat packages fix security vulnerabilities

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content. CVE-2026-32776 libexpat before 2.7.5 allows an infinite loop while parsing DTD content. CVE-2026-32777 libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry...

Security Bulletin: AIX/VIOS Python is vulnerable to a null pointer dereference (CVE-2026-24515) and an integer overflow (CVE-2026-25210)

Summary Vulnerabilities in Python could cause a null pointer dereference CVE-2026-24515 or an integer overflow CVE-2026-25210. Python is used by AIX as part of Ansible node management automation. Vulnerability Details CVEID:CVE-2026-24515 DESCRIPTION: In libexpat before 2.7.4,...

Security Bulletin: Multiple security vulnerabilities are addressed with Cloud Pak foundational services before 4.6.20 shipped with IBM Cloud Pak for Business Automation iFixes for January 2026.

Summary IBM Cloud Pak for Business Automation includes IBM Cloud Pak foundational services. IBM Cloud Pak for Business Automation January 2026 security fixes update this dependency to 4.6.20 to address security vulnerabilities. Vulnerability Details CVEID:CVE-2022-23990 DESCRIPTION: Expat aka...

SUSE CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

SUSE CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

EUVD-2026-12347

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

EUVD-2026-12351

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

ALPINE-CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

ALPINE-CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

ALPINE-CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

UBUNTU-CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

CVE-2026-32778

A flaw was found in libexpat. This vulnerability allows an attacker to trigger a NULL pointer dereference in the setContext function. This occurs when the system attempts to retry an operation after an out-of-memory condition, which can lead to a Denial of Service DoS for the affected application...

CVE-2026-32776

A flaw was found in libexpat. A remote attacker could exploit this vulnerability by providing specially crafted XML content with empty external parameter entities. This could lead to a NULL pointer dereference, causing the application to crash and resulting in a Denial of Service DoS. Mitigation...