What is CVE-2026-66380?

CVE-2026-66380 is a medium-severity vulnerability in Jfrog Artifactory, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-08-12.

How severe is CVE-2026-66380?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Jfrog Artifactory

CVE-2026-66380

An authenticated user without repository read permission may access private OCI referrer metadata under specific conditions.

Vulnerability class: Broken Access Control

Published 2026-08-12 · last modified 2026-09-02.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.3th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Jfrog Artifactory — versions 0, 7.161.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

docs.jfrog.com/releases/docs/artifactory-self-managed-releases (vendor-advisory, Release Notes)
docs.jfrog.com/releases/docs/jfrog-security-advisories (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-66380?: CVE-2026-66380 is a medium-severity vulnerability in Jfrog Artifactory, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-08-12.
How severe is CVE-2026-66380?: Medium severity. CVSS v3 base score is 4.3 out of 10.