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

Technical Severity

CVSS v3.1 Metrics

MEDIUM

5.3 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploitation Likelihood

EPSS Prediction

0.26 %

Predictive Probability

Percentile Rank

17.9 th

Documented as more likely to be exploited than 17.9% of known CVEs.

Detection Date

Aug 27, 2026

Remediation Due

Sep 10, 2026

CISA Catalog Active

Threat Analysis

JFrog Artifactory contains an improper limitation of a pathname to a restricted directory vulnerability. This can allow an authenticated user to write data outside the intended Docker cache path under specific remote-repository conditions.

Remediation Directive

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.

External Intelligence

https://docs.jfrog.com/releases/docs/jfrog-security-advisories

https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases

CISA

CISA Advisory

https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk

CISA

CISA Advisory

https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-66384