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CVE-2026-66384 CISA KEV — actively exploited

JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability

jfrog — artifactory

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

CVSS scoreMedium

5.3

EPSS — exploitation probabilityLow

0.6%

Vector breakdown

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

Published
Aug 12, 2026
Modified
Oct 24, 2026
Added to KEV
Aug 27, 2026
Federal patch due
Sep 10, 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.

Weakness classification

Affected packages

Proof-of-concept & exploitation references

1 found

Public repositories whose name or description references CVE-2026-66384, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.

References

How this class of flaw gets exploited

Frequently asked questions

What is CVE-2026-66384?

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

How severe is CVE-2026-66384?

CVE-2026-66384 has a CVSS base score of 5.3 out of 10 (CVSS 3.1).

Is CVE-2026-66384 actively exploited in the wild?

Yes. CVE-2026-66384 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Aug 27, 2026, meaning CISA has confirmed evidence of active exploitation.

What is the EPSS score for CVE-2026-66384?

0.6% - meaning FIRST.org's EPSS model estimates a 0.6% probability this vulnerability will be exploited in the wild within 30 days (45% percentile among all scored CVEs).

Is there exploit tooling available for CVE-2026-66384?

We found 1 public GitHub repository referencing CVE-2026-66384, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.

What type of vulnerability is CVE-2026-66384?

CVE-2026-66384 is classified under CWE-22 (CWE-22 Improper Limitation of a Pathname to a Restricted Directory).

Cross-checked against

Impactr finds and proves whether CVE-2026-66384 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.