VULNERABILITY INTELLIGENCE
CVE-2026-41401
CVSS score6.5 MEDIUM
EPSS probability0.67%
CISA KEVNot currently listed
Published2026-05-26
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
libyang before 5.4.3 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.
Weakness classification
- disclosure@vulncheck.com: CWE-416