https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-05T23:32:23.009731+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-76641 CVE-2026-76641 — Expat Out-of-Bounds Read via dtdCopy 2026-10-05T23:32:23.204460+00:00

Affected: libexpat

Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046.

 https://vulnerability.circl.lu/vuln/usn-8813-1 USN-8813-1 — expat vulnerabilities 2026-10-05T23:32:23.204604+00:00

Affected: Ubuntu:Pro:14.04:LTS: expat, Ubuntu:Pro:16.04:LTS: expat, Ubuntu:Pro:18.04:LTS: expat, Ubuntu:Pro:20.04:LTS: expat, Ubuntu:22.04:LTS: expat, Ubuntu:24.04:LTS: expat, Ubuntu:26.04:LTS: expat

It was discovered that Expat did not correctly handle certain integer arithmetic. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-56406, CVE-2026-56407, CVE-2026-56409, CVE-2026-56410, CVE-2026-56411)

It was discovered that Expat did not correctly track handler call depth. An attacker could possibly use this issue to cause Expat to crash or execute arbitrary code. (CVE-2026-56131)

It was discovered that Expat did not correctly handle certain memory operations. An attacker could possibly use this issue to cause Expat to crash or execute arbitrary code. (CVE-2026-56132)

It was discovered that Expat did not correctly handle certain Unicode characters. An attacker could possibly use this issue to cause Expat to use excessive resources, leading to a denial of service. (CVE-2026-72522)

It was discovered that Expat did not correctly process certain XML attributes. A remote attacker could possibly use this issue to cause Expat to use excessive resources, leading to a denial of service. (CVE-2026-66046)

It was discovered that Expat did not correctly handle certain external entities. An attacker could possibly use this issue to cause Expat to crash or execute arbitrary code. (CVE-2026-76641)

It was discovered that Expat did not correctly track handler call depth with custom encodings. An attacker could possibly use this issue to cause Expat to crash or execute arbitrary code. (CVE-2026-76957)