CVE-2026-42018 JFrog Artifactory Improper Authentication
Unauthenticated attackers can obtain internal anonymous tokens to access sensitive resources, even when anonymous access is disabled.
- Exploited in the wild
- Since 11 Sep 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-42018?
CVE-2026-42018 is a high-severity authentication bypass vulnerability in Jfrog Artifactory, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.
Weakness: CWE-287
Which versions are affected by CVE-2026-42018?
It affects 1 product.
Products include Jfrog Artifactory.
How do I fix CVE-2026-42018?
No fix has been published for CVE-2026-42018 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 25 Sep 2026.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-42018 being exploited?
Yes. Attackers have exploited CVE-2026-42018 in the wild since at least 11 Sep 2026.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Jfrog Artifactory
- CVE-2026-82329 JFrog Artifactory Improper Authentication
- CVE-2026-42016 JFrog Artifactory Incorrect Authorization
- CVE-2026-66384 JFrog Artifactory Improper Limitation of a Pathname to a Restricted Directory
- CVE-2019-17444 JFrog Artifactory does not enforce default admin password change
- CVE-2018-19971 Missing authorization in n/a
Sources
Also known as GHSA-3q94-gprh-7pwm.