UNIX Symbolic Link (Symlink) Following Affecting @backstage/backend-plugin-api package, versions <1.6.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-BACKSTAGEBACKENDPLUGINAPI-15054291
- published22 Jan 2026
- disclosed21 Jan 2026
- creditUnknown
Introduced: 21 Jan 2026
CVE-2026-24047 (opens in a new tab)How to fix?
Upgrade @backstage/backend-plugin-api to version 1.6.1 or higher.
Overview
@backstage/backend-plugin-api is a Core API used by Backstage backend plugins
Affected versions of this package are vulnerable to UNIX Symbolic Link (Symlink) Following in the resolveSafeChildPath() function, which relies on resolveRealPath(). An attacker can access sensitive files outside the intended directory by exploiting symlink chains or dangling symlinks that resolve to unauthorized locations.
Workaround
This vulnerability can be avoided by running the application in a restricted container.