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

Quick assessment

Affected
Unleash unleash
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-76910

Vulnerability Information

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Vulnerability Title
Unleash: Clone-feature lets a user copy a feature from a project they cannot read
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unleash unleash < 8.0.3 -

II. Public POCs for CVE-2026-76910

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III. Intelligence Information for CVE-2026-76910

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Other References for CVE-2026-76910 (1)

Other References for CVE-2026-76910 (2)

Same Patch Batch · Unleash · 2026-09-22 · 4 CVEs total

CVE-2026-77426 7.1 HIGH Unleash: Missing await on permission check + cross-project IDOR in admin API
CVE-2026-77425 4.3 MEDIUM Unleash: A project member can reorder activation strategies belonging to any other project
CVE-2026-76909 2.1 LOW Unleash: CR-approval email renders user-controlled raw HTML

IV. Related Vulnerabilities

Same product: unleash
Same vendor: Unleash
Same weakness: CWE-639

V. Comments for CVE-2026-76910

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