CVE-2026-84833

ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumption

State: Published
Severity: 5.3 Medium
Published: Sep 2, 2026
Updated: Sep 3, 2026
Reserved: Sep 2, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-400 Resource Consumption
CWE-404 Denial of Service

Affected Products

Product	Versions
openbrowserntegrals	067fc45d649baa961750da8e2f4a75d87c5c75c8Affected

References

VDB-398080 | ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumptionvdb-entry
VDB-398080 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-84833 | CVE Analysis and Reportthird-party-advisory
Submit #885464 | ntegrals OpenBrowser v1.0 Resource Exhaustionthird-party-advisory
https://github.com/outlookgp/CVE/tree/main/OpenBrowser_Message_Budget_DoS_Reportexploit

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