What is CVE-2026-66378?

CVE-2026-66378 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-2026-66378?

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

Auth bypass in Jfrog Artifactory

CVE-2026-66378

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

Vulnerability class: Broken Access Control

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.

Affected products

Jfrog Artifactory — versions 0, 7.161.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

reefs@jfrog.com (vendor-advisory)
reefs@jfrog.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-66378?: CVE-2026-66378 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-2026-66378?: Medium severity. CVSS v3 base score is 4.3 out of 10.