CVE-2026-76910CWE-639

CVE-2026-76910

published September 23, 2026

CVSS
5.3
EPSS
0%
Percentile
21.8
In the wild
Unconfirmed
What it is

Unleash is an open-source feature management platform. Prior to 8.0.3, cloneFeatureToggle and POST /api/admin/projects/:projectId/features/:featureName/clone authorize creation in the destination project but do not verify access to the source project. Because feature names are globally unique, a user with create or clone permission in one project who knows or guesses another project's feature name can copy that feature into the authorized project and inspect its strategy parameters, constraints, variants, and variant payloads. This issue is fixed in version 8.0.3.

The record
Technical detail
CVSS
5.3 · NONE
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00302 · 21.8th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-23T01:17Z
References (4)
EPSS history
Timeline
  • 24 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 22 SEP 20:21Z
    Unleash: Clone-feature lets a user copy a feature from a project they cannot read
    cvelistv5