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Exploited vulnerabilities / CVE-2026-66384

Confirmed exploited · exploited vulnerability · JFrog Artifactory

CVE-2026-66384

JFrog Artifactory exploited vulnerability, confirmed exploited in the wild.

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.

0.7%chance of exploitation in the next 30 days (EPSS), 52nd percentile
27 Augadded to CISA's Known Exploited Vulnerabilities list, 2026
10 Sepfederal remediation deadline, already passed
Passedpast the deadline: patch now
CISA's name for itJFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability
Vendor and productJFrog · Artifactory
Typeexploited vulnerability · CWE-22
ExploitedConfirmed by CISA listed 27 August 2026
Likelihoodscored lower by EPSS, but already confirmed exploited, which outranks any prediction
Deadline10 September 2026 · already passed
Used in ransomwareNot reported
Advisoriesdocs.jfrog.com ↗ · docs.jfrog.com ↗ · www.cisa.gov ↗ · www.cisa.gov ↗
What to do

Three steps, in this order

Step 1

Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited.

Step 2

If you cannot patch now, restrict network access to the affected product.

Step 3

Check for signs of compromise since the date it was added to the list.

CISA's required actionApply 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.
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Questions

CVE-2026-66384 in short

Is CVE-2026-66384 being exploited?

Yes. CISA added CVE-2026-66384 to its Known Exploited Vulnerabilities catalogue on 27 August 2026, which it does only on evidence of exploitation in the wild.

What is the CISA deadline for CVE-2026-66384?

US federal agencies must remediate it by 10 September 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.

How likely is CVE-2026-66384 to be exploited in the next 30 days?

FIRST's Exploit Prediction Scoring System gives it 0.7%, the 52nd percentile of every CVE it scores.

How do I fix CVE-2026-66384?

Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited. If you cannot patch now, restrict network access to the affected product. Check for signs of compromise since the date it was added to the list.

Same vendor

Other JFrog vulnerabilities being exploited

CVEProductTypeListed
CVE-2026-42016Artifactoryprivilege escalation11 September 2026
CVE-2026-42018Artifactoryauthentication bypass11 September 2026
CVE-2026-82329Artifactoryauthentication bypass2 September 2026

Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.

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