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cve recordhighexploited in the wild3 of 3 cataloguesexploit reported

CVE-2026-42018

JFrog · Artifactory · JFrog Artifactory Improper Authentication Vulnerability

Published · Added to CISA KEV
CVSS7.5
Severityhigh
WeaknessCWE-287
EPSS9.8%95.5th percentile
Exploited3 KEV sources
Ransomware useUnknown
Federal fix dueSep 25, 2026

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

patch window

Called exploited 29 days after disclosure.

Measured from the CVE publication date to the earliest of 3 KEV catalogues that list it.

The life of this vulnerability

  1. CVE published
  2. First KEV listing29d
  3. Last KEV listing1d
  4. Last sighting1d

Gaps are compressed to equal steps. The elapsed time is printed under each.

Which catalogues call it exploited

Sources3 of 3
Listings differ by1 d
Strongest claimconfirmed

3 catalogues list it. CIRCL aggregates the others and is shown but not counted.

Public exploitation evidence

1 public report collected from VulnCheck and CIRCL, first on Sep 10, 2026. Each links to its original source. We have not verified them.

Description

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

Required action (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.

References

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Our coverage of CVE-2026-42018

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