CVE-2026-42018

high

Description

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

References

https://www.wiz.io/blog/artifactory-under-attack-in-the-wild-exploitation-of-cve-2026-42016-cve-2026-4201

https://docs.jfrog.com/releases/docs/jfrog-security-advisories

https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases

https://www.securityweek.com/three-jfrog-artifactory-flaws-exploited-for-backdoor-deployment/

https://securityaffairs.com/199032/security/u-s-cisa-adds-gitlab-jfrog-artifactory-and-connectwise-screenconnect-flaws-to-its-known-exploited-vulnerabilities-catalog.html

https://thehackernews.com/2026/09/cisa-adds-5-actively-exploited.html

https://www.theregister.com/security/2026/09/11/more-jfrog-artifactory-bugs-under-attack-and-all-3-have-patches/5295943

https://www.cisa.gov/news-events/alerts/2026/09/11/cisa-adds-three-known-exploited-vulnerabilities-catalog

https://www.bleepingcomputer.com/news/security/artifactory-flaws-chained-in-attacks-deploying-backdoor-malware/

https://thehackernews.com/2026/09/attackers-chain-jfrog-artifactory-flaws.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018

Details

Source: Mitre, NVD

Published: 2026-08-12

Updated: 2026-09-12

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest

Detections

Analytics