CVE-2026-33852: Unguided Oldns Clear Memory Leak
Unconditionally clearing the 'oldNs' pointer before freeing a document with 'xmlFreeDoc' leads to a memory leak when parsing XML chunks if the context document is NULL. The namespace objects become orphaned and are not released. To fix this, ensure 'oldNs' is only cleared when a valid parent document exists.
Cgreprules fetch cve-2026-33852-unguided-oldns-clear-memory-leak --engine opengrepDescription
Unconditionally clearing the 'oldNs' pointer before freeing a document with 'xmlFreeDoc' leads to a memory leak when parsing XML chunks if the context document is NULL. The namespace objects become orphaned and are not released. To fix this, ensure 'oldNs' is only cleared when a valid parent document exists.
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