CVE-2026-66378 Authenticated users may access private NuGet metadata
Authenticated users lacking read permissions can access private NuGet metadata in JFrog Artifactory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66378?
CVE-2026-66378 is a medium-severity missing authorization vulnerability in Jfrog Artifactory, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated user without repository read permission may access private NuGet metadata under specific conditions.
Weakness: CWE-862
Which versions are affected by CVE-2026-66378?
It affects 1 product.
Products include Jfrog Artifactory.
How do I fix CVE-2026-66378?
No fix has been published for CVE-2026-66378 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-66378 being exploited?
There is no known exploitation of CVE-2026-66378 in the wild and no public exploit code.
Other vulnerabilities in Jfrog Artifactory
- CVE-2026-82329 JFrog Artifactory Improper Authentication
- CVE-2026-42016 JFrog Artifactory Incorrect Authorization
- CVE-2026-42018 JFrog Artifactory Improper Authentication
- 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
Sources
Also known as GHSA-9pg7-45vf-fg47.