CVE-2026-24515
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
- Update to 2.7.1-2ubuntu0.2
Published Updated
PatchFirst · Latest vulnerabilities
expat vulnerabilities · Page 2
Vulnerabilities published for expat in the last 30 days: 0. Listed in the KEV catalogue: 0.
Vulnerabilities: 24
CVE-2025-66382
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.
Published UpdatedCVE-2025-59375
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
- Update to 2.7.1-2ubuntu0.2
Published UpdatedLibexpat: expat: improper restriction of xml entity expansion depth in libexpat
A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.
- Update to 2.7.1-1
Published Updated
Check your server
Check your installed stack and versions against the current vulnerability feeds.