CVEvulnerability

CVE-2026-56132

6.9 MEDIUM Published 2026-06-19 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-06-19
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.9 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
CVSS 3.1 ([email protected])
6.9 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Weaknesses
CWE-821

Description

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.

Affected configurations

• libexpat project libexpat (< 2.8.2)

Related

Weakness · CWE (1)

  • CWE-821 Incorrect Synchronization weakness

References