Security Advisory

CVE-2026-41401

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-26 14:08:48

Last updated 2026-05-26 17:58:08

Assigner VulnCheck

CVSS score 6.9

State PUBLISHED

Description

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lyd_parser_set_data_flags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata attributes to applications parsing untrusted XML data, causing process crashes or potential code execution.

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