CVE-2025-31485
GraphQL grant on a property might be cached with different objects
Impact
### Original message: I found an issue with security grants on on properties in the GraphQL ItemNormalizer: If you use something like `#[ApiProperty(security: 'is_granted("PROPERTY_READ", [object, property])')]` on a member of an entity, the grant gets cached and is only evaluated once, even if the `object` in question is a different one. There is the `ApiPlatform\GraphQl\Serializer\ItemNormalizer::isCacheKeySafe()` method that seems to be intended to prevent this: https://github.com/api-platform/core/blob/88f5ac50d20d6510686a7552310cc567fcca45bf/src/GraphQl/Serializer/ItemNormalizer.php#L160-L164 and in its usage on line 90 it does indeed not create a cache key, but the `parent::normalize()` that is called afterwards still creates the cache key and causes the issue. ### Impact It grants access to properties that it should not. ### Workarounds Override the ItemNormalizer. Patched at: https://github.com/api-platform/core/commit/7af65aad13037d7649348ee3dcd88e084ef771f8
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | api-platform/graphql | < 3.4.17 | 3.4.17 |
| composer | api-platform/core | < 3.4.17 | 3.4.17 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/api-platform/core/commit/7af65aad13037d7649348ee3dcd88e084ef771f8
- https://github.com/api-platform/core/commit/cba3acfbd517763cf320167250c5bed6d569696a
- https://github.com/api-platform/core/releases/tag/v3.4.17
- https://github.com/api-platform/core/security/advisories/GHSA-428q-q3vv-3fq3
- https://github.com/advisories/GHSA-428q-q3vv-3fq3
- https://nvd.nist.gov/vuln/detail/CVE-2025-31485
- https://github.com/FriendsOfPHP/security-advisories/blob/master/api-platform/core/CVE-2025-31485.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/api-platform/graphql/CVE-2025-31485.yaml