PT-2026-41020 · Crabbox · Crabbox

Published 2026-05-14 · Updated 2026-06-25 · CVE-2026-8621

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Crabbox versions prior to 0.12.0

Description An authentication bypass 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 or organization-scoped lease operations belonging to victim accounts.

Recommendations Update to version 0.12.0 or later.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-8621

GHSA-4G9M-RFFV-H6WQ

GO-2026-5120

Affected Products

Crabbox

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8621.json · Exploit
• https://github.com/openclaw/crabbox/commit/b657323f1d1c954cefc8444571fa6c45a8896e7f · Patch
• https://osv.dev/vulnerability/GHSA-4g9m-rffv-h6wq · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8621 · Security Note
• https://osv.dev/vulnerability/CVE-2026-8621 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-5120 · Vendor Advisory
• https://github.com/openclaw/crabbox · Note
• https://github.com/openclaw/crabbox/pull/70 · Note
• https://github.com/openclaw/crabbox/releases/tag/v0.12.0 · Note
• https://vulncheck.com/advisories/crabbox-authentication-bypass-via-header-spoofing · Note
• https://github.com/advisories/GHSA-4g9m-rffv-h6wq · Note