CVE-2026-102633
Medium · 5.9CVSS
5.9
EPSS
0.3%
Published
Sep 29, 2026
CISA due date
—
The record
libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with vulnerable libexpat can cause heap buffer overflow, memory corruption, or denial of service.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
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