CVE-2026-31801

HIGH EPSS 11.5%
Published Mar 10, 20263mo ago · Modified Mar 18, 20263mo ago
7.7 CVSS 3.1
High
Find Similar
Published Mar 10, 2026 3mo ago
Last Modified Mar 18, 2026 3mo ago

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 Details

Base Score
7.7
Exploitability
3.1
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
11.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-863 Incorrect Authorization Authorization

Affected Products 1

VendorProductVersionRange
zotregistryzot*≥1.3.0  –  <2.1.15

References 1

  • github.com https://github.com/project-zot/zot/security/advisories/GHSA-85jx-fm8m-x8c6
    ExploitMitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.