dedupeio dedupe benchmark-bot.yml issue_comment os command injection

Summaryinfo

A vulnerability marked as critical has been reported in dedupeio dedupe. Impacted is the function issue_comment of the file github/workflows/benchmark-bot.yml. This manipulation causes os command injection. This vulnerability is handled as CVE-2025-54430. The attack can be initiated remotely. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in dedupeio dedupe (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is the function issue_comment of the file github/workflows/benchmark-bot.yml. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-54430 since 07/22/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Applying the patch 3f61e79102910bd355e920a2df7e44c14c9cb247 is able to eliminate this problem.

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Productinfo

Vendor

• dedupeio

Name

• dedupe

Website

• Product: https://github.com/dedupeio/dedupe/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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