strawberry-graphql strawberry up to 0.315.3 GraphQL /proxy/CDN information disclosure

Summaryinfo

A vulnerability classified as problematic was found in strawberry-graphql strawberry up to 0.315.3. This affects an unknown function of the file /proxy/CDN of the component GraphQL Handler. Such manipulation leads to information disclosure. This vulnerability is traded as CVE-2026-45739. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in strawberry-graphql strawberry up to 0.315.3. Affected by this issue is an unknown function of the file /proxy/CDN of the component GraphQL Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Strawberry GraphQL is a library for creating GraphQL APIs. In versions 0.288.4 through 0.315.3, Strawberry's bundled GraphiQL template wrote values from the GraphiQL headers editor into the browser URL query string. If a user entered a sensitive header, such as `Authorization: Bearer `, the value could become visible in browser history, copied links, and server/proxy/CDN access logs after a page reload or shared request. Version 0.315.4 patches the issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-45739 since 05/13/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 0.315.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9315ef80a621ae50ca0bc5c82f560ca4ee7e47a9 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• strawberry-graphql

Name

• strawberry

Version

• 0.315.0
• 0.315.1
• 0.315.2
• 0.315.3

License

• open-source

Website

• Product: https://github.com/strawberry-graphql/strawberry/

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