dbt-labs dbt-core Comment open-issue-in-repo.yml steps.issue_comment.outputs.comment- os command injection

Summaryinfo

A vulnerability, which was classified as critical, was found in dbt-labs dbt-core. Affected by this vulnerability is an unknown functionality of the file dbt-labs/actions/blob/main/.github/workflows/open-issue-in-repo.yml of the component Comment Handler. The manipulation of the argument steps.issue_comment.outputs.comment- results in os command injection. This vulnerability was named CVE-2026-39382. The attack may be performed from remote. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in dbt-labs dbt-core (affected version not known). It has been classified as critical. Affected is some unknown functionality of the file dbt-labs/actions/blob/main/.github/workflows/open-issue-in-repo.yml of the component Comment Handler. The manipulation of the argument steps.issue_comment.outputs.comment- with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

dbt enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications. Inside the reusable workflow dbt-labs/actions/blob/main/.github/workflows/open-issue-in-repo.yml, the prep job uses peter-evans/find-comment to search for an existing comment indicating that a docs issue has already been opened. The output steps.issue_comment.outputs.comment-body is then interpolated directly into a bash if statement. Because comment-body is attacker-controlled text and is inserted into shell syntax without escaping, a malicious comment body can break out of the quoted string and inject arbitrary shell commands. This vulnerability is fixed with commit bbed8d28354e9c644c5a7df13946a3a0451f9ab9.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-39382 since 04/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Applying the patch bbed8d28354e9c644c5a7df13946a3a0451f9ab9 is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• dbt-labs

Name

• dbt-core

License

• open-source

Website

• Product: https://github.com/dbt-labs/dbt-core/

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