Medium severity6.5NVD Advisory· Published Mar 24, 2026· Updated Jun 17, 2026
CVE-2026-33159
CVE-2026-33159
Description
Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | >= 5.0.0-RC1, < 5.9.14 | 5.9.14 |
craftcms/cmsPackagist | >= 4.0.0-RC1, < 4.17.8 | 4.17.8 |
Affected products
9cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*range: >4.0.0,<4.17.8
- cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592nvdPatchWEB
- github.com/advisories/GHSA-6mrr-q3pj-h53wghsaADVISORY
- github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53wnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-33159ghsaADVISORY
- github.com/craftcms/cms/releases/tag/4.17.8nvdRelease NotesWEB
- github.com/craftcms/cms/releases/tag/5.9.14nvdRelease NotesWEB
News mentions
0No linked articles in our index yet.