CVE-2026-33159
Last modified
CVE-2026-33159 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Craftcms | Craft Cms | > 4.0.0, < 4.17.8 |
| Craftcms | Craft Cms | > 5.0.0, < 5.9.14 |
| Craftcms | Craft Cms | 4.0.0 |
| Craftcms | Craft Cms | 5.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-33159?
How severe is CVE-2026-33159?
How do I fix CVE-2026-33159?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-33153Tandoor Recipes is an application for managing recipes, plan…6.5
- CVE-2026-33154dynaconf is a configuration management tool for Python. Prio…8.1
- CVE-2026-33155DeepDiff is a project focused on Deep Difference and search …7.5
- CVE-2026-33156ScreenToGif is a screen recording tool. In versions from 2.4…7.8
- CVE-2026-33157Craft CMS is a content management system (CMS). From version…7.2
- CVE-2026-33158Craft CMS is a content management system (CMS). From version…6.5
- CVE-2026-33160Craft CMS is a content management system (CMS). From version…5.3
- CVE-2026-33161Craft CMS is a content management system (CMS). From version…4.3
- CVE-2026-33162Craft CMS is a content management system (CMS). From version…6.5
- CVE-2026-33163Parse Server is an open source backend that can be deployed …6.5
- CVE-2026-33164libde265 is an open source implementation of the h.265 video…7.5
- CVE-2026-33165libde265 is an open source implementation of the h.265 video…5
Are you affected by CVE-2026-33159?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST