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CVE-2026-8621 — Vulnerability in github.com/openclaw/crabbox — CVE...

HIGH

Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers

Published May 14, 2026Updated June 25, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published May 14, 2026 (151 days ago).
  • Last revised June 25, 2026 — 42 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/openclaw/crabbox to 0.12.0 or later
go get github.com/openclaw/crabbox@v0.12.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
github.com/openclaw/crabbox
go
All versions0.12.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-287
    Improper AuthenticationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2026-8621?
Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-8621?
CVE-2026-8621 affects github.com/openclaw/crabbox. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-8621 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-4g9m-rffv-h6wq
GO-2026-5120

Related CVEs

  • CVE-2026-8634
    CRITICAL

    Crabbox: environment variable exposure vulnerability

  • CVE-2026-107809
    HIGH

    Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs

  • CVE-2026-107813
    HIGH

    Nginx UI: Incomplete fix of CVE-2026-84315 - the api/cluster router was not - wrapped in RequireSecureSession, so those sensitive mutations run without OTP step-up

More Go Modules advisories

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