CVE WatchSep 12, 2026

CVE-2026-42018

JFrog Artifactory Improper Authentication Vulnerability

CVSS

7.5

High

EPSS

9.8%

p95

KEV

YES

Sep 11, 2026

Exploit Today

0-100

Published: Aug 12, 2026 · Last modified: Sep 12, 2026 · CWE-287

EPSS · 30d

0.3%EPSS · 30 days11.0%

2026-08-292026-09-26

KEV catalog record

Product

JFrog / Artifactory

Vulnerability

JFrog Artifactory Improper Authentication Vulnerability

Added to KEV

Sep 11, 2026

Remediate by

Sep 25, 2026

Known ransomware use

Summary description

JFrog Artifactory contains an improper authentication vulnerability that could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.

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.

Notes

https://docs.jfrog.com/releases/docs/jfrog-security-advisories ; https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-42018

Technical description

JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.

Official references

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