CVE-2026-27955

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 58/100
Published: 2026-06-30 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Changed
C: Low
I: Low
A: Low

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlled docker_compose_custom_build_command and docker_compose_custom_start_command fields are interpolated directly, allowing a single quote to break out of the bash -c argument and execute commands on the managed server host (outside the intended Docker container context). This vulnerability is fixed in 4.0.0-beta.464.

Weakness Classification (1)

Bug Bounty Relevance

58 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

EPSS — Exploitation Probability

0.27%
Raw Score 0.002660
Percentile 18.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00266
2026-10-28
0.00266

Intelligence Sources

nvd ref →