Resource Consumption Vulnerability in ntegrals OpenBrowser Browser Agent
CVE-2026-84833

5.3MEDIUM

Key Information:

Vendor

Ntegrals

Status
Openbrowser
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-84833?

A vulnerability exists in ntegrals OpenBrowser, specifically within the Browser Agent Message Construction component. This issue allows attackers to exploit specific functionalities within the agent.ts file, leading to excessive resource consumption. The exploit can be triggered remotely, potentially affecting the performance and availability of systems using the affected versions. Despite the early disclosure of this vulnerability to the vendor, no response has been provided. As the product follows a rolling release model, no detailed version specifications are available for users to identify affected or patched releases.

Affected Version(s)

openbrowser 067fc45d649baa961750da8e2f4a75d87c5c75c8

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-84833 - Proof of Concept

References

https://vuldb.com/vuln/398080
vdb-entry
https://vuldb.com/vuln/398080/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-84833
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

outlookgp (VulDB User)
VulDB CNA Team
.