Authorization Vulnerabilities in Unleash Feature Management Platform
CVE-2026-77426

7.1HIGH

Key Information:

Vendor

Unleash

Status
Unleash
Vendor
CVE Published:
22 September 2026

What is CVE-2026-77426?

The Unleash feature management platform is plagued by multiple authorization vulnerabilities that could lead to unauthorized changes by authenticated users. The affected admin API endpoints allow users to modify feature strategies, segment assignments, and variant configurations without adequate permissions. Additionally, improper context validation across various API calls could expose sensitive environment and project information, creating potential cross-project data leaks. These vulnerabilities have been 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/7bb2829fc40791a...
x_refsource_MISC
https://github.com/Unleash/unleash/commit/ace121c922d2e3e...
x_refsource_MISC

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.