Description
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
libexpat project libexpat
Default version status: unaffected
0 to < 2.7.2affected
References
- https://github.com/libexpat/libexpat/issues/1018 ↗
- https://github.com/libexpat/libexpat/pull/1034 ↗
- https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74 ↗
- https://issues.oss-fuzz.com/issues/439133977 ↗
- https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes ↗
- http://www.openwall.com/lists/oss-security/2025/09/16/2 ↗
- http://www.openwall.com/lists/oss-security/2026/05/01/5 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html ↗