What is CVE-2026-27882?

CVE-2026-27882 is a medium-severity vulnerability in Coollabsio Coolify, classified under CWE-208. CVSS score: 4.8/10. Published 2026-06-30.

How severe is CVE-2026-27882?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Coollabsio Coolify

CVE-2026-27882

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator (!==) to validate the webhook secr…

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Coollabsio Coolify — versions < 4.0.0-beta.461

Weakness classification (CWE)

CWE-208

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-27882?: CVE-2026-27882 is a medium-severity vulnerability in Coollabsio Coolify, classified under CWE-208. CVSS score: 4.8/10. Published 2026-06-30.
How severe is CVE-2026-27882?: Medium severity. CVSS v3 base score is 4.8 out of 10.