Bohdan Triapitsyn OpenChamber up to 1.11.7 Route bootstrap-runtime.js improper authentication

Summaryinfo

A vulnerability categorized as critical has been discovered in Bohdan Triapitsyn OpenChamber up to 1.11.7. The impacted element is an unknown function of the file bootstrap-runtime.js of the component Route Handler. The manipulation results in improper authentication. This vulnerability is identified as CVE-2026-53977. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Bohdan Triapitsyn OpenChamber up to 1.11.7. It has been classified as critical. Affected is an unknown functionality of the file bootstrap-runtime.js of the component Route Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

OpenChamber 1.11.7 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to terminate the server process by sending a POST request to the /api/system/shutdown endpoint, which is registered before the authentication middleware in the Express route handler chain. Attackers can exploit the route registration order in bootstrap-runtime.js to reach the shutdown handler before auth middleware executes, causing denial of service to all active AI coding sessions and locking out legitimate remote users regardless of whether UI_PASSWORD is configured.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-53977 since 06/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/06/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Bohdan Triapitsyn

Name

• OpenChamber

Version

• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7

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