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CVE-2026-61833— zot: Bearer authentication maps DELETE to push scope, allowing unauthorized deletion

Quick assessment

Affected
project-zot zot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

zot is a container image and artifact registry based on the Open Container Initiative Distribution Specification. Prior to 2.1.18, the bearer authentication handler in pkg/api/authn.go maps every HTTP method other than GET and HEAD to the push action, so DELET

CVSS 8.1 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
project-zot zot < 2.1.18 affected
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I. Basic Information for CVE-2026-61833

Vulnerability Information

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Vulnerability Title
zot: Bearer authentication maps DELETE to push scope, allowing unauthorized deletion
Source: CVE Program / CVE List V5
Vulnerability Description
zot is a container image and artifact registry based on the Open Container Initiative Distribution Specification. Prior to 2.1.18, the bearer authentication handler in pkg/api/authn.go maps every HTTP method other than GET and HEAD to the push action, so DELETE requests are not checked for the distinct delete permission. Bearer-authenticated requests also bypass the fine-grained DistSpecAuthzHandler path in pkg/api/authz.go, while DeleteManifest and DeleteBlob perform no independent delete-permission check. A remote attacker with a bearer token limited to pull and push actions can therefore delete manifests and blobs within the token's repository scope, making images unavailable and allowing repository history to be altered despite the token lacking delete authorization. This issue is fixed in version 2.1.18.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
project-zot zot < 2.1.18 -

II. Public POCs for CVE-2026-61833

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III. Intelligence Information for CVE-2026-61833

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Patches & Fixes for CVE-2026-61833 (2)

Other References for CVE-2026-61833 (1)

IV. Related Vulnerabilities

Same product: zot
Same vendor: project-zot
Same weakness: CWE-285

V. Comments for CVE-2026-61833

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