libyang - Heap Use-After-Free Write in XML Metadata Parsing
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.9epss 0.5%
probabilidad de explotación
0.5%top 57% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
libyang · libyangReferencias
https://github.com/CESNET/libyang/commit/6b5ed47ee674fbe86b31bbebc4ff26889aeff38chttps://github.com/CESNET/libyang/security/advisories/GHSA-9f49-8x56-jmjchttps://red.anthropic.com/2026/cvd/findings/ANT-2026-TZQ1KH7Ehttps://www.vulncheck.com/advisories/libyang-heap-use-after-free-write-in-xml-metadata-parsing