CVE-2026-107728
highStrawberry GraphQL is a library for creating GraphQL APIs.
Strawberry GraphQL is a library for creating GraphQL APIs. From 0.217.0 until 0.326.1, PermissionExtension.resolve() on a synchronous field resolver evaluates the result of has_permission() for truthiness. When a custom permission declares has_permission() as a normal function but returns an awaitable, supports_sync does not classify it as asynchronous, the awaitable is not awaited, and its inherently truthy object value permits the protected resolver to run even when the result would resolve to false. This affects synchronous field resolvers under both execute_sync() and execute(); permissions declared with async def has_permission() and synchronous permissions returning a boolean are not affected. This issue is fixed in version 0.326.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/strawberry-graphql/strawberry/commit/2ebb79796c0e5ebb43cae1abd2b5a21363... security-advisories@github.com
- https://github.com/strawberry-graphql/strawberry/pull/4605 security-advisories@github.com
- https://github.com/strawberry-graphql/strawberry/releases/tag/0.326.1 security-advisories@github.com
- https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-pfvf-fwfp-25mp security-advisories@github.com
- https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-pfvf-fwfp-25mp 134c704f-9b21-4f2e-91b3-4a467353bcc0