---
title: "CVE-2026-90945: Crawlab - Authentication Bypass"
description: "Crawlab <= 0.6.3 contains a broken authentication caused by hard-coded HMAC-SHA256 secret for JWT token signing, letting unauthenticated attackers forge admin tokens to access APIs and execute code on worker nodes, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-90945/
---

# CVE-2026-90945 Crawlab - Authentication Bypass

Crawlab <= 0.6.3 contains a broken authentication caused by hard-coded HMAC-SHA256 secret for JWT token signing, letting unauthenticated attackers forge admin tokens to access APIs and execute code on worker nodes, exploit requires no special privileges.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.77% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90945)

## Details

Type

Authentication Bypass

Impact

Remote Code Execution, Broken Authentication

CVSS vector

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

Published

14 September 2026

Updated

15 October 2026

Weakness

[CWE-321](https://cwe.mitre.org/data/definitions/321.html)

## Vendor fix

Update to a version later than 0.6.3 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90945](https://nvd.nist.gov/vuln/detail/CVE-2026-90945)
- [https://github.com/crawlab-team/crawlab-core/blob/main/user/service.go](https://github.com/crawlab-team/crawlab-core/blob/main/user/service.go)
- [https://github.com/crawlab-team/crawlab/blob/0485310def8b4f31ea20997846a8d5e7dfc681e5/core/user/service\_v2.go](https://github.com/crawlab-team/crawlab/blob/0485310def8b4f31ea20997846a8d5e7dfc681e5/core/user/service_v2.go)
- [https://github.com/crawlab-team/crawlab/issues/1622](https://github.com/crawlab-team/crawlab/issues/1622)
- [https://www.vulncheck.com/advisories/crawlab-through-0.6.3-authentication-bypass-via-hard-coded-jwt-secret](https://www.vulncheck.com/advisories/crawlab-through-0.6.3-authentication-bypass-via-hard-coded-jwt-secret)
- [https://github.com/crawlab-team/crawlab](https://github.com/crawlab-team/crawlab)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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