textproc/libxml2 2.15.4 NetBSD

Security fix release. v2.15.4: Sep 01 2026 ### Security - xmlregexp: Prevent out-of-bounds read in NXT macro - fix: add missing overflow checks in dict.c, uri.c, and valid.c - xmlregexp: Calc string length after null checking - xpointer: Check overflow in xmlXPtrEvalXPtrPart - xmlIO: Check for int overflow before calling writecallback - fix(xinclude): propagate parseFlags in xmlXIncludeProcess and xmlXIncludeProcessTree ### Improvements - Improve bound checks for xmlcatalog and xmllint arguments (out-of-bound) - Fix memory leak in static Windows library (memory-leak) - xmlreader: Copy DTD in xmlTextReaderDumpCopy - parser: Fix double free in xmlIOParseDTD (double-free) - parser: fix division-by-zero when maxAmpl is set to 0 …

From Showta Ishizaki in PR 60591. v2.15.3: Apr 15 2026 ### Security - parser: Pass userData to SAX text callbacks in xmlParseReference (type-confusion) - entities: copy children in xmlCopyEntity - c14n: Fix Type confusion in xmlC14NProcessAttrsAxis - python: Do not decref string after adding to the list (double-free / use-after-free) - c14n: Reuse tmp_str, xmlStrcat reallocates *cur (double-free) ### Improvements - schemas: Fix relative schemaLocation resolution in XSI assembly in streaming mode - xmlreader: propagate reader resource loaders to validator parsers - python: Make python bindings python2 compatible - xmlregexp: Fix escape-sequence character range matching - xmlreader: Free input in xmlReaderForFd (memory-leak) …