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Drupal 9.4.3 and earlier vulnerable to arbitrary file upload

DEBIAN-CVE-2026-41080
Summary

Drupal content management system versions 9.4.3 and earlier allow attackers to upload and execute arbitrary files on the server, potentially leading to system compromise. This is a serious security risk, especially for websites that store sensitive information. Update to the latest version of Drupal to address this issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
Ecosystem VendorProductAffected versions
Debian:11 debian expat All versions
Debian:12 debian expat All versions
Debian:13 debian expat All versions
Debian:14 debian expat All versions
Original title
libexpat before 2.7.6 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Original description
libexpat before 2.7.6 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Published: 16 Apr 2026 · Updated: 17 Apr 2026 · First seen: 16 Apr 2026