EULEROS-SA-2026-2586

Summary:

An update for expat is now available for EulerOS V2.0SP12

EulerOS Security has rated this update as having a security impact of Important.A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.General:

This is expat, the C library for parsing XML, written by James Clark. Expat is a stream oriented XML parser. This means that you register handlers with the parser prior to starting the parse. These handlers are called when the parser discovers the associated structures in the document being parsed. A start tag is an example of the kind of structures for which you may register handlers.

Security Fix(es):

libexpat before 2.7.5 allows an infinite loop while parsing DTD content.(CVE-2026-32777)

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.(CVE-2026-32776)

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.(CVE-2026-41080)

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.(CVE-2026-45186)

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.(CVE-2026-32778)Legal Disclaimer:

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