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CVE-2026-31801

zot create-only policy allows overwrite attempts of existing latest tag (update permission not required) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
project-zot / zotaffected >= 1.3.0, < v2.1.15

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.