High 7.1Published Sep 22, 2026

CVE-2026-77426Unleash: Missing await on permission check + cross-project IDOR in admin API

Updated under an hour ago (2026-10-19 07:20 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Unleash is an open-source feature management platform. Prior to 8.0.3, the Unleash admin API contains five authorization vulnerabilities. POST /api/admin/segments/strategies assigns the Promise returned by hasPermission without awaiting it, allowing authenticated users to modify segment assignments without UPDATE_FEATURE_STRATEGY permission for the target project and environment. GET /api/admin/projects/:projectId/features/:featureName/environments/:environment/variants does not bind the requested feature to projectId, allowing cross-project variant configuration disclosure. GET .../strategies/:strategyId uses strategyId without validating the project and feature context, allowing cross-project strategy configuration disclosure. getEnvironmentInfo does not validate that the requested feature belongs to the supplied project, allowing cross-project environment information disclosure. PUT /:projectId/tags accepts feature identifiers without verifying that they belong to the URL project, allowing cross-project tag modification. This issue is fixed in version 8.0.3.

CVSS: 7.1 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-639, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Unleash unleash unleash:unleash (from the name)	before 8.0.3	CNA record

References

https://github.com/Unleash/unleash/security/advisories/GHSA-72h8-wp98-7hchx-refsource-confirm
https://github.com/Unleash/unleash/commit/7bb2829fc40791aa478e8ffca149c11b0f9cb05ax-refsource-misc
https://github.com/Unleash/unleash/commit/ace121c922d2e3eb6f68d95b0b6ab2fc8d824ea1x-refsource-misc
https://github.com/Unleash/unleash/commit/bea7effd3687425630423f662136d548e100154dx-refsource-misc
https://github.com/Unleash/unleash/commit/c93a963e95e1b7bf1bca2a7729282a48d0eb2f6ax-refsource-misc
https://github.com/Unleash/unleash/commit/dd61d0e10f5977a2e5de78df467c3a17c09fbcefx-refsource-misc
https://github.com/Unleash/unleash/releases/tag/v8.0.3x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.