{"id":"CVE-2026-115327","title":"libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser","summary":"libyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-824"],"vendor":"CESNET","product":"libyang","affected":["libyang <= 6.4.13"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T10:57:45.264Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115327","references":[{"url":"https://github.com/CESNET/libyang/issues/2595"},{"url":"https://github.com/CESNET/libyang/commit/927fce908774289a7d9c07fff5704c33965c9773"},{"url":"https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1330-L1342"},{"url":"https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1196-L1224"},{"url":"https://hackmd.io/@haindpwn/libyang-netconf-rpc-envelope-uninit-free"},{"url":"https://github.com/CESNET/libyang"},{"url":"https://www.vulncheck.com/advisories/libyang-through-6.4.13-uninitialized-pointer-free-in-netconf-rpc-parser","label":"VulnCheck Advisory: libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T11:37:02.335Z","slug":"CVE-2026-115327","body":"## Overview\n\nlibyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.\n\n## Affected\n\n- `libyang <= 6.4.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}