CVE-2026-8621CWE-287

CVE-2026-8621

High · published May 14, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
52.2
In the wild
Unconfirmed
What it is

Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a shared token to bypass authorization checks and access owner/org-scoped lease operations belonging to victim accounts.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00689 · 52.2th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-05-14T23:16Z
References (4)
EPSS history
Timeline
  • 14 MAY 18:46Z
    Crabbox < v0.12.0 Authentication Bypass via Header Spoofing
    cvelistv5