CVE-2026-123372

LOW
INFO Priority: 0.01 BB Relevance: 55/100
Published: 2026-11-09 Modified: 2026-11-13 First seen: 2026-11-09 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
S: X
AT: Present
VC: Low
VI: None
VA: None

Description

compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. From 0.22.0 until 0.32.0, compose-lint substitutes values from a sibling .env file into image fields and quotes the resolved value in CL-0004 and CL-0019 finding messages and fix text. In a workflow that writes secrets into that file and then lints untrusted pull-request content, an attacker can reference a secret variable so its whole value reaches the job log, JSON output, SARIF artifacts, and Code Scanning alerts. Fork pull requests normally lack secrets, so exploitation requires a secret-bearing workflow such as pull_request_target, same-repository branches, or a retained .env on a self-hosted runner, and the pass or fail result is unchanged. This issue is fixed in version 0.32.0.

Affected Software (3)

VendorProductVersion
tmatens compose-lint >= 0.22.0, < 0.32.0
tmatens compose-lint >= 0.22.0, < 0.32.0
tmatens compose-lint >= 0.22.0, < 0.32.0

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.38%
Raw Score 0.003800
Percentile 32.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00380
2026-11-12
0.00380
2026-11-10
0.00380

Intelligence Sources

mitre ref →
nvd ref →