CVE-2026-45739

EUVD-2026-34270

04.06.2026, 15:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	3.1 LOW	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 12%

Affected Products (NVD)

Vendor	Product	Version
strawberry	strawberry_graphql	0.288.4 ≤ 𝑥 < 0.315.4

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References

https://github.com/strawberry-graphql/strawberry/commit/9315ef80a621ae50ca0bc5c82f560ca4ee7e47a9

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

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

https://github.com/strawberry-graphql/strawberry/releases/tag/0.315.4

https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-x97m-qp5c-w9xj