CVE-2026-27938
WPGraphQL provides a GraphQL API for WordPress sites.
Published Feb 26, 2026 · updated Jun 17, 2026
WPGraphQL provides a GraphQL API for WordPress sites. Prior to version 2.9.1, the repository contains a GitHub Actions workflow ( ) vulnerable to OS command injection through direct use of inside a shell block. When a pull request from to is merged, the PR body is injected verbatim into a shell command, allowing arbitrary command execution on the Actions runner. Version 2.9.1 contains a fix for the vulnerability.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Feb 26, 2026 · NIST NVD
Detected
WPGraphQL provides a GraphQL API for WordPress sites. Prior to version 2.9.1, the repository contains a GitHub Actions workflow ( ) vulnerable to OS command injection through direct use of inside a shell block. When a pull request from to is merged, the PR body is injected verbatim into a shell command, allowing arbitrary command execution on the Actions runner. Version 2.9.1 contains a fix for th
Jun 17, 2026 · NIST NVD
Updated
WPGraphQL provides a GraphQL API for WordPress sites. Prior to version 2.9.1, the repository contains a GitHub Actions workflow ( ) vulnerable to OS command injection through direct use of inside a shell block. When a pull request from to is merged, the PR body is injected verbatim into a shell command, allowing arbitrary command execution on the Actions runner. Version 2.9.1 contains a fix for th
Sources
- CVE.orgVulnerability recordCVE-2026-27938
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-27938
WPGraphQL provides a GraphQL API for WordPress sites. Prior to version 2.9.1, the repository contains a GitHub Actions workflow ( ) vulnerable to OS command injection through direct use of inside a
nvd.nist.gov