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Description

xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.

PUBLISHED Reserved 2026-06-21 | Published 2026-06-21 | Updated 2026-06-21 | Assigner mitre




MEDIUM: 6.9CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Problem types

CWE-190 Integer Overflow or Wraparound

Product status

Default status
unaffected

Any version before 2.8.2
affected

References

github.com/libexpat/libexpat/pull/1263

cve.org (CVE-2026-56411)

nvd.nist.gov (CVE-2026-56411)

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