EULEROS-SA-2026-1985

Summary:

An update for expat is now available for EulerOS V2.0SP10

EulerOS Security has rated this update as having a security impact of Critical.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):

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.(CVE-2026-24515)

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.(CVE-2026-25210)Legal Disclaimer:

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