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Known vulnerabilities in xmlsoft libxml2

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CVE Summary Score Published
CVE-2026-86144 In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags 5.6 Medium Sep 5, 2026
CVE-2026-86143 In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to… 6.9 Medium Sep 5, 2026
CVE-2026-86142 In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer… 6.9 Medium Sep 5, 2026
CVE-2026-86141 xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e.,… 2.9 Low Sep 5, 2026
CVE-2026-86140 In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow 8.0 High Sep 5, 2026
CVE-2026-86139 In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow 6.9 Medium Sep 5, 2026
CVE-2026-86138 In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow 6.9 Medium Sep 5, 2026
CVE-2026-86137 In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro… 2.9 Low Sep 5, 2026
CVE-2026-11979 libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode 1.8 Low Jun 29, 2026
CVE-2025-32415 In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer… 2.9 Low Apr 17, 2025
CVE-2025-32414 In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python… 5.6 Medium Apr 8, 2025
CVE-2025-27113 libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c 2.9 Low Feb 18, 2025
CVE-2025-24928 libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c 7.8 High Feb 18, 2025
CVE-2024-56171 libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and… 7.8 High Feb 18, 2025
CVE-2022-49043 xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a use-after-free 8.1 High Jan 26, 2025

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