CVE-2026-88860CWE-863broken-access-control

CVE-2026-88860

Medium · published September 10, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
18.7
In the wild
Unconfirmed
What it is

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 Attackers can retain channel-specific permissions after their base RBAC access has been revoked to perform unauthorized actions like changing production OTA versions.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00273 · 18.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-10T18:17Z
References (2)
https://github.com/Cap-go/capgo.app/security/advisories/GHSA-qfxq-2ch8-hjg9 · [email protected]https://www.vulncheck.com/advisories/capgo-authorization-bypass-via-stale-channel-permission-overrides · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 13:05Z
    Capgo Authorization Bypass via Stale Channel Permission Overrides
    cvelistv5