CVE-2026-76910: Unleash: Clone-feature lets a user copy a feature from a project they cannot read

September 22, 2026

The clone-feature endpoint supports copying features across projects, but it does not verify that the caller can access the source project. A user with create permissions in one project can clone a feature from another project they cannot read and then inspect the copied configuration.

This vulnerability cannot be confirmed without Enterprise access. Report is based on a circumstantial evidence in the open-source repository.

References

github.com/Unleash/unleash/commit/2dc6ac0e8ba524ec7a2e9bc96a0e01d9d6f5a35a
github.com/Unleash/unleash/releases/tag/v8.0.3
github.com/Unleash/unleash/security/advisories/GHSA-8xcj-9hfr-fh9j
github.com/advisories/GHSA-8xcj-9hfr-fh9j
nvd.nist.gov/vuln/detail/CVE-2026-76910

Code Behaviors & Features

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