Vulnerability · Published Sep 14, 2026 · Assigned by VulnCheck
CVE-2026-90945Crawlab through 0.6.3 Authentication Bypass via Hard-coded JWT Secret
Critical 9.8
In plain English
A critical-severity security flaw in crawlab from crawlab-team. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 44.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Crawlab through 0.6.3 uses a hard-coded HMAC-SHA256 secret for JWT token signing that cannot be overridden via configuration or environment variables. Unauthenticated attackers can forge valid administrator tokens to access administrative APIs and execute code on worker nodes.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| crawlab-team | crawlab | 0 – through 0.6.3 |
Weakness: CWE-321 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Issue #1622 issue-tracking
- https://github.com/crawlab-team/crawlab product
- core/user/service_v2.go at 0485310 technical-description
- crawlab-core user/service.go, the module vendored at v0.6.3 technical-description
- VulnCheck Advisory: Crawlab through 0.6.3 Authentication Bypass via Hard-coded JWT Secret third-party-advisory