Vulnerability Description
zot is ancontainer image/artifact registry based on the Open Container Initiative Distribution Specification. From 1.3.0 to 2.1.14, zot’s dist-spec authorization middleware infers the required action for PUT /v2/{name}/manifests/{reference} as create by default, and only switches to update when the tag already exists and reference != "latest". As a result, when latest already exists, a user who is allowed to create (but not allowed to update) can still pass the authorization check for an overwrite attempt of latest. This vulnerability is fixed in 2.1.15.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zotregistry | Zot | >= 1.3.0, < 2.1.15 |
Related Weaknesses (CWE)
References
- https://github.com/project-zot/zot/security/advisories/GHSA-85jx-fm8m-x8c6ExploitMitigationVendor Advisory
FAQ
What is CVE-2026-31801?
CVE-2026-31801 is a vulnerability with a CVSS score of 7.7 (HIGH). zot is ancontainer image/artifact registry based on the Open Container Initiative Distribution Specification. From 1.3.0 to 2.1.14, zot’s dist-spec authorization middleware infers the required action ...
How severe is CVE-2026-31801?
CVE-2026-31801 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31801?
Check the references section above for vendor advisories and patch information. Affected products include: Zotregistry Zot.