Unleash Feature Management Platform Vulnerability in User Access Control
CVE-2026-77425

4.3MEDIUM

Key Information:

Vendor

Unleash

Status
Unleash
Vendor
CVE Published:
22 September 2026

What is CVE-2026-77425?

The vulnerability in Unleash allows authenticated users to reorder strategies across projects by using attacker-controlled strategy IDs. Specifically, the POST /api/admin/projects/:projectId/features/:featureName/environments/:environment/strategies/set-sort-order endpoint fails to validate if the provided strategy IDs belong to the authorized project and feature context. This oversight enables an authenticated user with UPDATE_FEATURE_STRATEGY permissions in one project to affect the feature evaluation precedence in another project without proper authorization, compromising the integrity of feature management and potentially impacting the application's performance and behavior. This issue was addressed in version 8.0.3.

Affected Version(s)

unleash < 8.0.3

References

https://github.com/Unleash/unleash/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/Unleash/unleash/commit/43e8db37b846921...
x_refsource_MISC
https://github.com/Unleash/unleash/releases/tag/v8.0.3
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.