PT-2025-45965 · Julia · Expat Jll

Published 2025-10-21 · Updated 2025-10-21

OSV

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

Related Identifiers

JLSEC-2025-173

Affected Products

Expat Jll

References · 7

• https://osv.dev/vulnerability/JLSEC-2025-173 · Vendor Advisory
• https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes · Note
• https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74 · Note
• https://github.com/libexpat/libexpat/pull/1034 · Note
• https://github.com/libexpat/libexpat/issues/1018 · Note
• http://openwall.com/lists/oss-security/2025/09/16/2 · Note
• https://issues.oss-fuzz.com/issues/439133977 · Note