CVE-2026-42201

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, database credential fields (redis_password, keydb_password, dragonfly_password, clickhouse_admin_user, clickhouse_admin_password, postgres_user, mysql_user) are validated only as 'string' at the API layer, with zero shell-safety checks. These values are then interpolated directly into Docker Compose YAML command: strings without any escaping. This issue is fixed in version 4.0.0-beta.474.

CVSS 3.1

3.3CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-07-07

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

References

• https://github.com/coollabsio/coolify/commit/bff6d853708f3d7c861279586f107739036e67da
• https://github.com/coollabsio/coolify/pull/9676
• https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474
• https://github.com/coollabsio/coolify/security/advisories/GHSA-f35h-g2c2-q36v
• https://github.com/coollabsio/coolify/security/advisories/GHSA-f35h-g2c2-q36v

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