4.3

CVE-2026-66378: jfrog artifactory Missing Authorization

CVSS: 4.3v3.1MediumAnalyzed
Published 12-08-2026Last modified 13-08-2026
Open JSON

Vulnerability summary

CVE-2026-66378 is a medium (CVSS 4.3) Missing Authorization vulnerability in jfrog artifactory. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.5% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-08-2026
    PublishedVulnerability first disclosed.
  2. 13-08-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

+0.08 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jfrog1 product

1 vendor · 1 product

References

2 links