# CVE-2026-123796: compose-lint: Incomplete fix for GHSA-jf3h-8jvx-vcrg: a run stopped at the finding limit quotes a secret from a CI-generated `.env`


- **Severity:** Low 2.3 (`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`)
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 9 Nov 2026
- **Updated:** 9 Nov 2026
- **Also known as:** GHSA-rm8w-w798-g545

## What is CVE-2026-123796?

CVE-2026-123796 is a low-severity vulnerability in tmatens compose-lint, published on 9 Nov 2026. 

### Official description

compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. From 0.32.0 until 0.33.0, compose-lint's incomplete remediation for .env secret disclosure checks the 20,000-finding limit before replacing resolved values with their variable references. A pull request can combine a secret-referencing image field with aliased content that produces more than 20,000 findings, causing the early-stop path to emit already graded findings with the resolved secret value in text, JSON, SARIF, and Code Scanning output. Exploitation requires a workflow that writes secrets into the sibling .env and lints untrusted changes, and the run exits 2 unless --allow-partial-coverage is used. This issue is fixed in version 0.33.0.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-123796?

2 open source packages ship an affected version, including tmatens/compose-lint and compose-lint.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `tmatens/compose-lint` | GitHub Actions | From 0.32.0 | 0.33.0 |
| `compose-lint` | PyPI | From 0.32.0 | 0.33.0 |

## How do I fix CVE-2026-123796?

Upgrade tmatens/compose-lint to 0.33.0 or later.

## Is CVE-2026-123796 being exploited?

There is no known exploitation of CVE-2026-123796 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-123796 and fix it if it is affected.

What it is: CVE-2026-123796 is a low-severity vulnerability in tmatens compose-lint, published on 9 Nov 2026. 
Exploitation: There is no known exploitation of CVE-2026-123796 in the wild and no public exploit code.

Affected packages and fixed versions:
- tmatens/compose-lint (GitHub Actions): affected from 0.32.0; fixed in 0.33.0
- compose-lint (PyPI): affected from 0.32.0; fixed in 0.33.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-123796/ (Markdown: https://insights.sbomify.com/CVE-2026-123796/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-123796
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123796
- OSV: https://osv.dev/vulnerability/CVE-2026-123796

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-123796/
Summaries are generated and may contain mistakes; the official description above is the record.