CVE-2025-54430
dedupe is vulnerable to secret exfiltration via issue_comment
- Published
- Jul 30, 2025
- Updated
- Jul 30, 2025
- Assigning CNA
- GitHub_M
- Evidence observed
- Sep 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NLow · next 30 days
- Percentile
- 27.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
dedupe is a python library that uses machine learning to perform fuzzy matching, deduplication and entity resolution quickly on structured data. Before commit 3f61e79, a critical severity vulnerability has been identified within the .github/workflows/benchmark-bot.yml workflow, where a issue_comment can be triggered using the @benchmark body. This workflow is susceptible to exploitation as it checkout the ${{ github.event.issue.number }}, which correspond to the branch of the PR manipulated by potentially malicious actors, and where untrusted code may be executed. Running untrusted code may lead to the exfiltration of GITHUB_TOKEN, which in this workflow has write permissions on most of the scopes - in particular the contents one - and could lead to potential repository takeover. This is fixed by commit 3f61e79.
Sources
1- gha-lab-ba981941f0Research
Security-research lab reproducing CVE-2025-54430 (GHSA-wrg3-xqw8-m85p): secrets exfiltration via issue_comment-triggered Benchmark Bot in dedupeio/dedupe. Snapshot of dedupeio/dedupe@54ecfe77d41390da66899596834a2bde3712c966.
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