CVE-2026-24515 — NULL Pointer Dereference in Project Libexpat

CWE-476 — NULL Pointer Dereference13 documents8 sources
Severity
2.5LOWNVD
CNA2.9OSV7.5
EPSS
0.0%
top 99.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Libexpat Project Libexpat
Timeline
PublishedJan 23
Latest updateFeb 16

Description

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:LExploitability: 1.0 | Impact: 1.4

Affected Packages2 packages

▶CVEListV5libexpat_project/libexpat< 2.7.4

🔴Vulnerability Details

6
OSV
expat vulnerabilities↗2026-02-16
▶
OSV
libxmltok vulnerabilities↗2026-02-11
▶
OSV
expat vulnerabilities↗2026-02-10
▶
OSV
CVE-2026-24515: In libexpat before 2↗2026-01-23
▶
GHSA
GHSA-mpwv-4wmh-cvf7: In libexpat before 2↗2026-01-23
▶

📋Vendor Advisories

5
Ubuntu
Expat vulnerabilities↗2026-02-16
▶
Ubuntu
xmltok library vulnerabilities↗2026-02-11
▶
Ubuntu
Expat vulnerabilities↗2026-02-10
▶
Red Hat
libexpat: libexpat null pointer dereference↗2026-01-23
▶
Debian
CVE-2026-24515: expat - In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown e...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-24515 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-24515 — NULL Pointer Dereference | cvebase