5.3

CVE-2026-66384: JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability

CVSS: 5.3v3.1MediumKEVAnalyzed
Published 12-08-2026Last modified 28-08-2026

Vulnerability summary

CVE-2026-66384 is a medium (CVSS 5.3) Path Traversal vulnerability in JFrog Artifactory. It is known to be exploited: CISA lists it, first on 27-08-2026. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 51.1% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.66%
0%100%
Low · +0.09 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-08-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Added to CISA KEVJFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability
  3. 28-08-2026
    Last modifiedVulnerability information updated.
  4. 10-09-2026
    CISA remediation dueApply mitigations per vendor instructions.

Description

An authenticated user may write data outside the intended Docker cache path under specific remote-repository conditions.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.66%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

+0.09 pp

From 0.58% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.66%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
27-08-2026
Federal due date
10-09-2026

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. docs.jfrog.com/releases/docs/jfrog-security-advisories docs.jfrog.com/releases/docs/artifactory-self-managed-releases nvd.nist.gov/vuln/detail/CVE-2026-66384

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jfrog1 product

1 vendor · 1 product

References

5 links