CVE-2026-115327

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/CESNET/libyang
https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1196-L1224
https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1330-L1342
https://github.com/CESNET/libyang/commit/927fce908774289a7d9c07fff5704c33965c9773
https://github.com/CESNET/libyang/issues/2595
https://hackmd.io/@haindpwn/libyang-netconf-rpc-envelope-uninit-free
https://www.vulncheck.com/advisories/libyang-through-6.4.13-uninitialized-pointer-free-in-netconf-rpc-parser
https://hackmd.io/@haindpwn/cve-2026-115327-libyang-netconf-rpc-envelope-uninit-free

Configurations

No configuration.

History

29 Oct 2026, 04:18

Type	Values Removed	Values Added
References		() https://hackmd.io/@haindpwn/cve-2026-115327-libyang-netconf-rpc-envelope-uninit-free -

22 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 11:17

Updated : 2026-10-29 04:18

NVD link : CVE-2026-115327

Mitre link : CVE-2026-115327

CVE.ORG link : CVE-2026-115327

JSON object : View

Products Affected

No product.

CWE

CWE-824

Access of Uninitialized Pointer

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