CVE-2026-88860

MEDIUM 6.3

Capgo Authorization Bypass via Stale Channel Permission Overrides

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

Capgo fails to clean up channel permission overrides when a user's last organization role binding is deleted, leaving stale overrides active. Attackers can retain channel-specific permissions after their base RBAC access has been revoked to perform unauthorized actions like changing production OTA versions.

CWE	CWE-863
Vendor	cap-go
Product	capgo.app
Published	Sep 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

Cap-go / capgo.app

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Cap-go/capgo.app/security/advisories/GHSA-qfxq-2ch8-hjg9 vulncheck.com: https://www.vulncheck.com/advisories/capgo-authorization-bypass-via-stale-channel-permission-overrides

Credits

🔍 Judel777