CVE-2026-8621

Crabbox < v0.12.0 Authentication Bypass via Header Spoofing

Published May 14, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4g9m-rffv-h6wq Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Openclaw
Openclaw crabbox
Vendors & Products Openclaw
Openclaw crabbox
Type Values Removed Values Added
Description 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.
Title Crabbox < v0.12.0 Authentication Bypass via Header Spoofing
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:09 PM
Reserved
May 14, 2026, 6:39 PM
Status
Deferred
Published
May 14, 2026, 7:16 PM
Modified
Oct 26, 2026, 2:10 PM