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CVE-2026-84833

ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumption

MEDIUM
4.3
CVSS Score
Published: September 2, 2026 at 05:00 PM UTC
Updated: September 3, 2026 at 05:44 PM UTC
1 product affected across 1 vendorOpenbrowser

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Openbrowser· Ntegrals
60%
67fc45d649baa961750da8e2f4a75d87c5c75c8

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/398080
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/398080/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-84833
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/885464
Exploit
Source: cverecord
https://github.com/outlookgp/CVE/tree/main/OpenBrowser_Message_Budget_DoS_Report

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400CWE-404

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