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Description

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 <token>`, 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.

PUBLISHED Reserved 2026-05-13 | Published 2026-06-04 | Updated 2026-06-04 | Assigner GitHub_M




LOW: 3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CWE-201: Insertion of Sensitive Information Into Sent Data

Product status

>= 0.288.4, < 0.315.4
affected

References

github.com/...wberry/security/advisories/GHSA-x97m-qp5c-w9xj

github.com/strawberry-graphql/strawberry/issues/4398

github.com/strawberry-graphql/strawberry/pull/2842

github.com/...ommit/9315ef80a621ae50ca0bc5c82f560ca4ee7e47a9

github.com/...wberry-graphql/strawberry/releases/tag/0.315.4

cve.org (CVE-2026-45739)

nvd.nist.gov (CVE-2026-45739)

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