CLEANSTART-2026-LB69194 In libexpat before 2

Multiple security vulnerabilities affect the apache-zookeeper package. In libexpat before 2. See references for individual vulnerability details...

libexpat: 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...