What is CVE-2026-35523?

CVE-2026-35523 is a high-severity vulnerability in Strawberry-graphql Strawberry, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-04-07.

How severe is CVE-2026-35523?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Strawberry-graphql Strawberry

CVE-2026-35523

Strawberry GraphQL is a library for creating GraphQL APIs. Strawberry up until version 0.312.3 is vulnerable to an authentication bypass on WebSocket subscription endpoints. The legacy graphql-ws subprotocol handler does not verify that a…

Vulnerability class: Broken Authentication

EPSS: 0.001 (28.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Strawberry-graphql Strawberry — versions < 0.312.3

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-vpwc-v33q-mq89 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-35523?: CVE-2026-35523 is a high-severity vulnerability in Strawberry-graphql Strawberry, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-04-07.
How severe is CVE-2026-35523?: High severity. CVSS v3 base score is 7.5 out of 10.