{"id":"CVE-2026-40887","aliases":["GHSA-9pp3-53p2-ww9v"],"url":"https://o3.security/vulnerability/CVE-2026-40887","summary":"@vendure/core has a SQL Injection vulnerability","details":"## Summary\n\nAn unauthenticated SQL injection vulnerability exists in the Vendure Shop API. A user-controlled query string parameter is interpolated directly into a raw SQL expression without parameterization or validation, allowing an attacker to execute arbitrary SQL against the database. This affects all supported database backends (PostgreSQL, MySQL/MariaDB, SQLite).\n\nThe Admin API is also affected, though exploitation there requires authentication.\n\n## Affected versions\n\n- `@vendure/core` < 2.3.4\n- `@vendure/core` >= 3.0.0, < 3.5.7\n- `@vendure/core` >= 3.6.0, < 3.6.2\n\nNote: versions 2.3.4 and above in the 2.x line are patched. There were no 2.4.x or 2.x releases between 2.3.x and 3.0.0.\n\n## Patched versions\n\n- `@vendure/core` 2.3.4\n- `@vendure/core` 3.5.7\n- `@vendure/core` 3.6.2\n\n## Details\n\nIn `ProductService.findOneBySlug`, the request context's `languageCode` value is interpolated into a SQL `CASE` expression via a JavaScript template literal:\n\n```ts\n.addSelect(\n    `CASE translation.languageCode WHEN '${ctx.languageCode}' THEN 2 WHEN '${ctx.channel.defaultLanguageCode}' THEN 1 ELSE 0 END`,\n    'sort_order',\n)\n```\n\nTypeORM has no opportunity to parameterize this value because it is embedded directly into the SQL string before being passed to the query builder.\n\nThe `languageCode` value can originate from the HTTP query string and is set on the request context for every incoming API request. The value is cast to the `LanguageCode` TypeScript type at compile time, but no runtime validation is performed -- the raw query string value is used as-is.\n\n## Attack vector\n\nAn unauthenticated attacker can append a crafted `languageCode` query parameter to any Shop API request to inject arbitrary SQL into the query. No user interaction is required. The vulnerable endpoint is exposed on every default Vendure installation.\n\n## Mitigation\n\n**Upgrade to a patched version immediately.**\n\nIf you cannot upgrade right away, apply the following hotfix to `RequestContextService.getLanguageCode` to validate the `languageCode` input at the boundary. This blocks injection payloads before they can reach any query:\n\n```ts\nprivate getLanguageCode(req: Request, channel: Channel): LanguageCode | undefined {\n    const queryLanguageCode = req.query?.languageCode as string | undefined;\n    const isValidFormat = queryLanguageCode && /^[a-zA-Z0-9_-]+$/.test(queryLanguageCode);\n    return (\n        (isValidFormat ? (queryLanguageCode as LanguageCode) : undefined) ??\n        channel.defaultLanguageCode ??\n        this.configService.defaultLanguageCode\n    );\n}\n```\n\nThis replaces the existing `getLanguageCode` method in `packages/core/src/service/helpers/request-context/request-context.service.ts`. Invalid values are silently dropped and the channel's default language is used instead.\n\nThe patched versions additionally convert the vulnerable SQL interpolation to a parameterized query as defense in depth.","published":"2026-04-21T19:24:59.525Z","modified":"2026-08-12T03:51:38.011000739Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},"epss":{"score":0.01762,"percentile":0.75982,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@vendure/core","fixedVersion":"3.5.7"},{"ecosystem":"npm","name":"@vendure/core","fixedVersion":"3.6.2"},{"ecosystem":"npm","name":"@vendure/core","fixedVersion":"2.3.4"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40887.json"},{"type":"ADVISORY","url":"https://github.com/vendurehq/vendure/security/advisories/GHSA-9pp3-53p2-ww9v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40887"},{"type":"PACKAGE","url":"https://github.com/vendurehq/vendure"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:38.011000739Z"}}