Medium severity · published Sep 10, 2026
CVE-2026-88860
Capgo Authorization Bypass via Stale Channel Permission Overrides
6.3
CVSS
0.3%
EPSS
No
On KEV
Description
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 Attackers can retain channel-specific permissions after their base RBAC access has been revoked to perform unauthorized actions like changing production OTA versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
capgo.app · Cap-go
0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88860
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88860
vendor-advisory
https://github.com/Cap-go/capgo.app/security/advisories/GHSA-qfxq-2ch8-hjg9
third-party-advisory
https://www.vulncheck.com/advisories/capgo-authorization-bypass-via-stale-channel-permission-overrides
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