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Alerts This Week
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Debian 11 perl Important Code Injection Weakness DLA-4538-1 CVE-2025-40909

debian lts
Calendar Grey April 18, 2026
Dist Debian Esm H88
Perl in Debian LTS has a critical flaw allowing local attackers to access unauthorized data or inject code.
Vincent Lefèvre discovered that, in the Perl programming language, at thread creation the current directory may temporarily change in other threads, altering file accesses
Topics%20covered

Topics Covered

security advisory unauthorized access debian important perl injection

Summary

For Debian 11 bullseye, this problem has been fixed in version
5.32.1-4+deb11u5.

We recommend that you upgrade your perl packages.

For the detailed security status of perl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/perl

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
important
Lowest
Low
Medium
High
Critical

Package: perl
Version: 5.32.1-4+deb11u5
CVE ID: CVE-2025-40909
Debian Bug: 1098226

Topics%20covered

Topics Covered

security advisory unauthorized access debian important perl injection

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