Loading
Loading
We use strictly necessary cookies to run this site, and analytics cookies to understand how it's used. See our Privacy Policy for details.
A GitHub-reviewed security advisory, not necessarily under active exploitation the way our CISA KEV advisories are, but a real, disclosed vulnerability in an open-source dependency.
Affected packages
Vulnerable: < 0.17.8
Patched in 0.17.8
Details
An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced.
Patched in @backstage/backend-defaults version 0.17.8
Limit access to action invocation endpoints to trusted service callers until upgrading.
EPSS, exploit probability
Low0.24%
estimated chance of real-world exploitation in the next 30 days, higher than 13.8% of every CVE FIRST.org scores
Refreshed 10/15/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.
Talk to us about this
Find out whether this dependency (or others like it) is actually reachable in your codebase.
Get help patching, or building dependency-scanning into your pipeline going forward.
A secure code review or supply chain review finds this before an advisory does.