Home / mailings [USN-8940-1] Perl XS::Parse::Keyword module vulnerability
Posted on 21 October 2026
Ubuntu Security==========================================================================Ubuntu Security Notice USN-8940-1
October 20, 2026
libxs-parse-keyword-perl vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 26.10
- Ubuntu 26.04 LTS
Summary:
The Perl XS::Parse::Keyword module could be made to crash if it received
specially crafted input.
Software Description:
- libxs-parse-keyword-perl: XS functions to assist in parsing keyword syntax
Details:
It was discovered that the Perl XS::Parse::Keyword module did not
correctly handle certain inputs. If a user or automated system were
tricked into receiving specially crafted input, an attacker could cause
a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 26.10
libxs-parse-keyword-perl 0.49-1ubuntu1
Ubuntu 26.04 LTS
libxs-parse-keyword-perl 0.49-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8940-1
CVE-2026-85644
Package Information:
https://launchpad.net/ubuntu/+source/libxs-parse-keyword-perl/0.49-1ubuntu1
https://launchpad.net/ubuntu/+source/libxs-parse-keyword-perl/0.49-1ubuntu0.1
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