{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-27938", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-25T03:11:36.689Z", "datePublished": "2026-02-26T01:10:26.985Z", "dateUpdated": "2026-02-26T19:22:46.590Z" }, "containers": { "cna": { "title": "WPGraphQL Repo Vulnerable to Command Injection via Unsanitized GitHub Actions Expression in Release Workflow", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1" } } ], "references": [ { "name": "https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-4q9f-mjxf-rx7x", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-4q9f-mjxf-rx7x" }, { "name": "https://github.com/wp-graphql/wp-graphql/commit/de0c2d590593f1099546ad517106e454a498bc58", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/wp-graphql/wp-graphql/commit/de0c2d590593f1099546ad517106e454a498bc58" } ], "affected": [ { "vendor": "wp-graphql", "product": "wp-graphql", "versions": [ { "version": "< 2.9.1", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-26T01:10:26.985Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-4q9f-mjxf-rx7x", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-02-26T19:22:31.745230Z", "id": "CVE-2026-27938", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-26T19:22:46.590Z" } } ] } }