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.

Classification

CVE ID: CVE-2025-32953

CVSS Base Severity: HIGH

CVSS Base Score: 8.7

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

Affected Products

Vendor: udo-munk

Product: z80pack

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.07% (probability of being exploited)

EPSS Percentile: 21.84% (scored less or equal to compared to others)

EPSS Date: 2025-05-01 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-32953
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

Timeline