CVE-2026-84833: ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumption
A vulnerability was found in ntegrals openbrowser up to 067fc45d649baa961750da8e2f4a75d87c5c75c8. Affected by this vulnerability is an unknown functionality of the file packages/core/src/agent/agent.ts of the component Browser Agent Message Construction. Performing a manipulation results in resource consumption. It is possible to initiate the attack remotely. The exploit has been made public and could be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
Can this be exploited remotely without authentication?
Yes. The attack can be initiated remotely, and the CVSS vector indicates no privileges are required. However, user interaction is required for exploitation.
What is the practical impact of a successful attack?
Successful manipulation of Browser Agent Message Construction can cause resource consumption, resulting in an availability impact. The provided scoring indicates no confidentiality or integrity impact.
How should teams identify affected deployments given the rolling-release model?
Version-based identification is not available. The affected code is identified as packages/core/src/agent/agent.ts in Browser Agent Message Construction, with the disclosure stating impact through commit 067fc45d649baa961750da8e2f4a75d87c5c75c8.
Is public exploit information available?
Yes. The exploit has been made public and could be used. The vulnerability is rated as having proof-of-concept exploit maturity.