Your message dated Tue, 13 Oct 2026 19:37:16 +0200
with message-id <[email protected]>
and subject line libyang: CVE-2026-41401
has caused the Debian Bug report #1149179,
regarding libyang: CVE-2026-41401
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
1149179: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1149179
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: libyang
X-Debbugs-CC: [email protected]
Severity: important
Tags: security
Hi,
The following vulnerability was published for libyang.
CVE-2026-41401[0]:
| 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.
https://github.com/CESNET/libyang/security/advisories/GHSA-9f49-8x56-jmjc
Fixed by:
https://github.com/CESNET/libyang/commit/54c3276d871023da266d4ed3ceaee7e8d71d0b04
(v5.4.9)
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2026-41401
https://www.cve.org/CVERecord?id=CVE-2026-41401
Please adjust the affected versions in the BTS as needed.
--- End Message ---
--- Begin Message ---
Version: 5.4.9-1
This was fixed in experimental
--- End Message ---
