Insertion of Sensitive Information Into Sent Data Affecting strawberry-graphql package, versions [0.288.4, 0.315.4)
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Test your applications- Snyk IDSNYK-PYTHON-STRAWBERRYGRAPHQL-16771095
- published20 May 2026
- disclosed19 May 2026
- creditLeander Schroer
Introduced: 19 May 2026
NewCVE-2026-45739 (opens in a new tab)How to fix?
Upgrade strawberry-graphql to version 0.315.4 or higher.
Overview
strawberry-graphql is an A library for creating GraphQL APIs
Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the graphiql template. An attacker can obtain sensitive HTTP header values by enticing a user to enter confidential information into the headers editor and then causing the resulting URL to be exposed through browser history, copied links, or server/proxy/CDN logs.
Note: This is only exploitable if the default browser-based IDE is enabled and a user manually enters sensitive data into the headers editor.
Workaround
This vulnerability can be mitigated by disabling the bundled IDE in production or by providing a custom GraphiQL template that does not serialize header values into the URL.