sherlock-project sherlock up to 0.16.0 Pull Request os command injection

Summaryinfo

A vulnerability was found in sherlock-project sherlock up to 0.16.0 and classified as critical. This issue affects some unknown processing of the component Pull Request Handler. Such manipulation leads to os command injection. This vulnerability is traded as CVE-2026-44590. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in sherlock-project sherlock up to 0.16.0. It has been rated as critical. Affected by this issue is an unknown code of the component Pull Request Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-44590 since 05/06/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 317958 (Linux Distros Unpatched Vulnerability : CVE-2026-44590), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.16.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (317958). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Project Management Software

Vendor

• sherlock-project

Name

• sherlock

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16.0

Website

• Product: https://github.com/sherlock-project/sherlock/

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Once again VulDB remains the best source for vulnerability data.

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