CVE-2026-118574
S3 File System - Moderately critical - Access bypass - SA-CONTRIB-2026-279
Incorrect Permission Assignment for Critical Resource vulnerability in Drupal S3 File System allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects S3 File System versions: from 0.0.0 to 3.12.0.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| S3 File System Drupal https://www.drupal.org/project/s3fs |
≥ 0.0.0; < 3.12.0 (affected, semver) | CNA: drupal |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.6 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | ADP: CISA-ADP |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.drupal.org/sa-contrib-2026-279CNA: drupal
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