CriticalVulnerability

CVE-2025-54430: dedupe GitHub workflow runs untrusted PR code on benchmark comment

Source: NVD(opens in a new tab)
Identifier: CVE-2025-54430
Published: July 30, 2025
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.4%

Summary

CVE-2025-54430 affects dedupe, a Python library for fuzzy matching, deduplication and entity resolution on structured data, before commit 3f61e79. The flaw sits in the .github/workflows/benchmark-bot.yml workflow, which runs on an issue_comment triggered by the @benchmark body and checks out the PR branch referenced by ${{ github.event.issue.number }}, so untrusted code from a malicious PR may execute. That code can exfiltrate GITHUB_TOKEN, which holds write permissions on most scopes, including contents, potentially enabling repository takeover.

Mitigation

This is fixed by commit 3f61e79.

Details

Scores and exploitation

CVSS score: 9.1(critical)
EPSS: 0.4%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 3, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-78
Attack pattern (CAPEC): CAPEC-88

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Confidentiality,
Integrity
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-54430

First tracked: February 15, 2026 at 08:53 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 80% (self-assessed)

Summary

Mitigation

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