CVE-2026-23735Public exploitNetwork attack vector

Cross-request context confusion via singleton race

Published Jan 16, 2026 · Updated Jan 16, 2026

Race condition in GraphQL Modules 2.2.1 through 2.4.0 and 3.0.0 through 3.1.0 allows remote attackers to mix request contexts. The @ExecutionContext() getter on singleton providers reads shared application context, allowing a parallel request to replace the value during an earlier asynchronous execution. Applications are exposed only when singleton services inject request context; backend operations can then use the wrong request's authentication token.

CVSS severity8.7
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Race condition in GraphQL Modules 2.2.1 through 2.4.0 and 3.0.0 through 3.1.0 allows remote attackers to mix request contexts. The @ExecutionContext() getter on singleton providers reads shared application context, allowing a parallel request to replace the value during an earlier asynchronous execution. Applications are exposed only when singleton services inject request context; backend operations can then use the wrong request's authentication token.

The record

CVE
CVE-2026-23735
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
The Guild
Product
GraphQL Modules
Classifications
CWE-362, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.2.1, < 2.4.1
  2. Affected versionversion=>= 3.0.0, < 3.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Guild · GraphQL Modulesversion=>= 2.2.1, < 2.4.1; version=>= 3.0.0, < 3.1.1

Published CVSS scores

8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo