libyang - Heap Use-After-Free Write in XML Metadata Parsing
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.9epss 0.5%
probabilidade de exploração
0.5%top 57% das CVEs
exploração observada
nãonenhuma fonte 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
Produtos afetados
libyang · libyangReferências
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