CVE-2026-45739 LOW

CVE-2026-45739: Strawberry GraphQL: Default GraphiQL may expose HTTP headers in URLs

Vendor Strawberry-Graphql
Product strawberry
Weakness CWE-200 · Info exposure
Published June 4, 2026
Last update June 4, 2026
View on NVD All CVEs

CVSS base score

3.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 4, 2026 CVE published
June 4, 2026 Record updated