JFrog Artifactory Improper Authentication Vulnerability
JFrog Artifactory contains an authentication weakness that, under default configuration, may allow an unauthenticated attacker with network access to obtain administrative privileges.
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)02 Sept 2026
- Exploited in EUVD (ENISA)02 Sept 2026
- Used by ransomwareno
- EPSS above 10 %14.4%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: 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.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Affected products
- 0 <7.111.21
- 7.161.0 <7.161.20
- 7.146.0 <7.146.38
- 7.125.0 <7.125.20
- 7.117.0 <7.117.28
- 7.133.0 <7.133.29
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
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EPSS peak: 14.4%
References
Other exploited vulnerabilities from the same vendor
- CVE-2026-42018JFrog Artifactory Improper Authentication Vulnerability5.1 · Actively exploited
- CVE-2026-42016JFrog Artifactory Incorrect Authorization Vulnerability4.7 · Actively exploited
- CVE-2026-66384JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory Vulnerability3.3 · Actively exploited