CVE-2026-42018 Details.
JFrog Artifactory - Anonymous Token Disclosure via Trailing Slash Auth Bypass
Atlas does not check this one. Needs requests that change data.
To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check.
About CVE-2026-42018. What It Means.
JFrog Artifactory contains an information disclosure caused by returning an internal anonymous-user token to unauthenticated callers when anonymous access is disabled, letting unauthenticated attackers access sensitive resources. The exploit requires anonymous access to be disabled.
Affected Product. What Is Hit.
The record for CVE-2026-42018 does not name a vendor or product yet.
References. Where To Read More.
- https://docs.jfrog.com/releases/docs/jfrog-security-advisories
- https://www.wiz.io/blog/artifactory-under-attack-in-the-wild-exploitation-of-cve-2026-42016-cve-2026-4201
- https://github.com/BL0odz/JFrog_CVE-2026-65615-ByGLM
- https://edrabb.fr/posts/full-chain-preauth-rce-jfrog-artifactory/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018
FAQ
Common Questions.
JFrog Artifactory - Anonymous Token Disclosure via Trailing Slash Auth Bypass. JFrog Artifactory contains an information disclosure caused by returning an internal anonymous-user token to unauthenticated callers when anonymous access is disabled, letting unauthenticated attackers access sensitive resources. The exploit requires anonymous access to be disabled.
No. To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check. The facts about CVE-2026-42018 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
Yes. CVE-2026-42018 is on the CISA Known Exploited Vulnerabilities list, which means attackers have used it against real targets.
Update the affected software to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-42018. Atlas does not run a check for it, so nothing here says whether a particular site is affected.