CVE-2026-115327
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductCesnet Libyang
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-824CWE-824
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| CESNET libyang | v ≤ 6.4.13 | — |
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