CVE-2026-84833 ntegrals openbrowser Browser Agent Message Construction agent.ts resource consumption
Remote attackers can cause resource consumption in the openbrowser library's browser agent, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-84833?
CVE-2026-84833 is a medium-severity denial of service vulnerability in ntegrals openbrowser, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2026-84833?
How do I fix CVE-2026-84833?
No fix has been published for CVE-2026-84833 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-84833 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84833 exists.
Sources
Also known as GHSA-q5rj-fmg6-p6r6.