Libexpat Project Security Vulnerabilities (CVE)
Explore vulnerabilities and security advisories affecting Libexpat Project products.
3 known CVE vulnerabilities tracked
Critical
0
High
0
Medium
1
Low
2
None
0
Vulnerabilities By Year
Products Affected
All Libexpat Project CVEs
CVE-2026-25210
6.9
medium
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Libexpat
Jan 30, 2026
CVE-2026-24515
2.9
low
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
Libexpat
Jan 23, 2026
CVE-2025-66382
2.9
low
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
Libexpat
Nov 28, 2025