What’s Vulnerable › Vulnerabilities

CVE-2026-84833: ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumption

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-03
• Weakness: CWE-400

Description

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 products

• ntegrals openbrowser: 067fc45d649baa961750da8e2f4a75d87c5c75c8

References

• https://github.com/outlookgp/CVE/tree/main/OpenBrowser_Message_Budget_DoS_Report
• https://vuldb.com/cve/CVE-2026-84833
• https://vuldb.com/submit/885464
• https://vuldb.com/vuln/398080
• https://vuldb.com/vuln/398080/cti

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