CVE-2026-31801: zot’s create-only policy allows overwrite attempts of existing latest tag (update permission not required)

CVE-2026-31801 · Severity: low · CVSS 3.1 · Published 2026-03-12

zot’s create-only policy allows overwrite attempts of existing latest tag (update permission not required) in zotregistry.dev/zot

Technologies: zotregistry.dev/zot (Go). Vendors: Go.

Quick answers

Is CVE-2026-31801 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-31801 being exploited in the wild.
How severe is CVE-2026-31801?
Low severity, with a CVSS score of 3.1, published 12 March 2026.
Which products and versions are affected?
zotregistry.dev/zot (Go) SEMVER:introduced=0, SEMVER:introduced=1.3.0-20210831063041-c8779d9e87d9,last_affected=1.4.4-20251014054906-73eef25681af; zotregistry.dev/zot/v2 (Go) SEMVER:introduced=0,fixed=2.1.15.
Is there a fix for CVE-2026-31801?
Yes. zotregistry.dev/zot/v2 (Go): upgrade to 2.1.15 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-31801?
Check whether you run zotregistry.dev/zot (Go) or zotregistry.dev/zot/v2 (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • zotregistry.dev/zot/v2 (Go): upgrade to 2.1.15 or later
    go get zotregistry.dev/zot/v2@v2.1.15

Affected products

  • zotregistry.dev/zot (Go) SEMVER:introduced=0, SEMVER:introduced=1.3.0-20210831063041-c8779d9e87d9,last_affected=1.4.4-20251014054906-73eef25681af
  • zotregistry.dev/zot/v2 (Go) SEMVER:introduced=0,fixed=2.1.15

Identifiers

  • CVE-2026-31801
  • GHSA-85jx-fm8m-x8c6
  • GO-2026-4668

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.