CVE-2026-71979: Lilxml Insufficient Error Buffer Size

A fixed-size error buffer smaller than XML_ERROR_SIZE (1024 bytes) is passed to lilxml's readXMLFile, leading to a stack buffer overflow when formatting XML error messages.

Provally CuratedPublic repositoryHighHigh confidenceVerifiedApache-2.0C
greprules fetch cve-2026-71979-lilxml-insufficient-error-buffer-size --engine opengrep

Description

A fixed-size error buffer smaller than XML_ERROR_SIZE (1024 bytes) is passed to lilxml's readXMLFile, leading to a stack buffer overflow when formatting XML error messages.