Is CVE-2026-35523 actively exploited?

No active exploitation of CVE-2026-35523 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35523 be exploited remotely?

Yes. CVE-2026-35523 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35523?

CVE-2026-35523 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-35523

CWE-306Published: April 7, 2026· Updated: Apr 8, 2026

7.5

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:28.6th

Official Description

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 connection_init handshake has been completed before processing start (subscription) messages. This allows a remote attacker to skip the on_ws_connect authentication hook entirely by connecting with the graphql-ws subprotocol and sending a start message directly, without ever sending connection_init. This vulnerability is fixed in 0.312.3.

NVD Source

Technical Analysis

CVE-2026-35523 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.