Auth bypass in Coollabsio Coolify
CVE-2026-100746
A vulnerability was found in coollabsio Coolify up to 4.1.0. This affects the function Github::redirect of the file /webhooks/source/github/redirect of the component GitHub App Setup Handler. The manipulation of the argument state results in missing authentication. The attack can be executed remotely. The exploit has been made public and could be used. Upgrading to version 4.1.1 mitigates this issue. The patch is identified as fc89e357feed5180ed1ab5eb9cb330578f025539. The affected component should be upgraded.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (43.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Coollabsio Coolify — versions 4.0, 4.1.0
Weakness classification (CWE)
References
- VDB-410617 | coollabsio Coolify GitHub App Setup redirect missing authentication (technical-description, vdb-entry)
- VDB-410617 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- CVE-2026-100746 | CVE Analysis and Report (third-party-advisory)
- Submit #897404 | coollabsio Coolify 4.1.1 Missing Authentication (third-party-advisory)
- github.com/lakshayyverma/CVE-Discovery/blob/main/coolify-unauth-secret-overwrit… (exploit)
- github.com/coollabsio/coolify/pull/10362 (issue-tracking, patch)
- github.com/coollabsio/coolify/commit/fc89e357feed5180ed1ab5eb9cb330578f025539 (patch)
- github.com/coollabsio/coolify/releases/tag/v4.1.1 (patch)
- github.com/coollabsio/coolify/ (product)
Frequently asked questions
- What is CVE-2026-100746?
- CVE-2026-100746 is a high-severity vulnerability in Coollabsio Coolify, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-09-27.
- How severe is CVE-2026-100746?
- High severity. CVSS v3 base score is 7.3 out of 10.