Advisory record · GHSA-pfvf-fwfp-25mp

Strawberry GraphQL: Synchronous permission checks can treat an awaitable authorization result as truthy

CVSS 7.5 HighEPSS 0.0045 · 39th percentile

Published by the GitHub Advisory Database at 9 Oct 2026, 14:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
strawberry-graphqlPyPI>=0.217.0, <0.326.10.326.1
Identifiers
GHSA-pfvf-fwfp-25mp · CVE-2026-107728 · PYSEC-2026-4303
Weakness (CWE)
CWE-863
Published
9 Oct 2026
Updated
15 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Strawberry GraphQL versions from 0.217.0 before 0.326.1 are affected. A custom permission whose has_permission is a plain def returning an awaitable is treated as allowing access, so a protected field with a synchronous resolver can run even when the permission should deny it. Exploitation depends on the application using that permission shape, and the source does not describe any attacker-side requirements beyond sending a request to the affected field. Upgrade to version 0.326.1, which now raises an error instead of granting access.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0045, the 39th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:08 UTC First seen by agentprime
  2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.