[CLSA-2026:1789483285] alt-libxml2: Fix of 8 CVEs
Type:
security
Severity:
Critical
Release date:
2026-09-15 14:41:41 UTC
Description:
- CVE-2026-86137: out-of-bounds read in the NXT macro in xmlFAParsePosCharGroup - CVE-2026-86138: integer overflow and heap buffer overflow in xmlDictAddQString - CVE-2025-24928: stale-length bounds check inside the xmlSnprintfElements loop (upstream 8c8753ad); this is the stack overflow reachable on 2.10.2 - CVE-2026-86140: unchecked strcat at the entry and exit of xmlSnprintfElements (upstream d1686f91); hardening only on 2.10.2, callers pass an emptied buffer - CVE-2026-86141: NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure - CVE-2026-86142: heap buffer overflow in xmlXPtrEvalXPtrPart from xpointer length saturation - CVE-2026-86143: negative lengths reaching write callbacks in xmlIO - CVE-2026-86144: xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags; the include context now inherits every document parse flag (NOENT, RECOVER and HUGE included), not only NONET
Updated packages:
  • alt-libxml2-2.10.2-6.el6.x86_64.rpm
    sha:396b41b8e2555020c23a7074242d49482588bf22b1ce09fd2cc90edea84bf8fb
  • alt-libxml2-devel-2.10.2-6.el6.x86_64.rpm
    sha:d9a87f7b208f56943470058ac582b8132b98ecfa925a5a84edf3d643ee2a4687
  • alt-libxml2-static-2.10.2-6.el6.x86_64.rpm
    sha:ebcad9dbd5bb1351a5c5c5515ca86b006d1ab51a9b28113dcc06db8ed472db05
Notes:
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