CVE-2026-66384: JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 27 Aug 2026, 15 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 0.7%
EPSS score, percentile 51.6 of all scored records
- How severe?
- 5.3 Medium
CVSS v3.1 base score, given by the CNA
- What should I do?
Required action (CISA), due 10 Sep 2026: 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.
- Which versions are affected?
Affected: before 7.146.35; 7.161.0 up to, not including, 7.161.16
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
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.
CISA due date for this action: 10 September 2026.
Advisories and patches
Linked from CISA's catalog entry
- https://docs.jfrog.com/releases/docs/jfrog-security-advisories
- https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-66384
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 7.146.35 |
| Affected | 7.161.0 up to, not including, 7.161.16 |
Versions not listed are: unaffected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
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.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2026-66384 to its Known Exploited Vulnerabilities (KEV) catalog on 27 Aug 2026.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 10 Sep 2026.
- The CVE record was published on 12 Aug 2026, 15 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 5.3 (Medium), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.7% (percentile 51.6), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact partial.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Authenticated users may write data outside the intended Docker cache path
An authenticated user may write data outside the intended Docker cache path under specific remote-repository conditions.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 12 Aug 2026 | CVE record published |
| 27 Aug 2026 | Added to CISA KEV |
| 28 Aug 2026 | CVE record last updated |
| 10 Sep 2026 | CISA due date for the required action |
More exploited JFrog vulnerabilities
- CVE-2026-42016: JFrog Artifactory Incorrect Authorization Vulnerability
- CVE-2026-42018: JFrog Artifactory Improper Authentication Vulnerability
- CVE-2026-82329: JFrog Artifactory Improper Authentication Vulnerability