CVE-2026-115327
mediumlibyang 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 env…
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-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.
CVSS
5.3
5.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-22 11:17
Modified: 2026-10-29 04:18
NVD status: Awaiting Analysis
Last synced 28 minutes ago
Verified against the source API 2026-10-29 04:43 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/CESNET/libyang disclosure@vulncheck.com
- https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1196-L1224 disclosure@vulncheck.com
- https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1330-L1342 disclosure@vulncheck.com
- https://github.com/CESNET/libyang/commit/927fce908774289a7d9c07fff5704c33965c9773 disclosure@vulncheck.com
- https://github.com/CESNET/libyang/issues/2595 disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/libyang-netconf-rpc-envelope-uninit-free disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/libyang-through-6.4.13-uninitialized-pointer-free-in-... disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/cve-2026-115327-libyang-netconf-rpc-envelope-uninit-free 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-29 04:43 UTC · record ↗