CVE-2026-56132MediumCVSS 6.9

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.

Published
June 30, 2026
Last Modified
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🔗 CVE IDs covered (1)

CVE-2026-56132 →

🎯 Affected products3

  • azl3 cmake 3.30.3-13 on Azure Linux 3.0
  • azl3 expat 2.6.4-6 on Azure Linux 3.0
  • azl3 python3 3.12.9-11 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 2.8.2-1

🔗 References (2)