WPGraphQL, CVE-2026-27938

CVE, Research URL: CVE-2026-27938
Home page URL: Security reports for WPGraphQL
Application: WPGraphQL
Published on: Feb 26, 2026
Research Description: WPGraphQL provides a GraphQL API for WordPress sites. Prior to version 2.9.1, the `wp-graphql/wp-graphql` repository contains a GitHub Actions workflow (`release.yml`) vulnerable to OS command injection through direct use of `${{ github.event.pull_request.body }}` inside a `run:` shell block. When a pull request from `develop` to `master` 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.
Affected versions: max 2.9.1.
Status: vulnerable