CVE-2026-122020 NST Labs Tech Nstbrowser Local Agent Management Service stopAll stopAllBrowsers denial of service
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-122020?
CVE-2026-122020 is a medium-severity vulnerability in Nstbrowser, published on 4 Nov 2026.
Official description
A security flaw has been discovered in NST Labs Tech Nstbrowser up to 1.2.1. The affected element is the function stopAllBrowsers of the file /api/agent/browser/stopAll of the component Local Agent Management Service. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-404
Which versions are affected by CVE-2026-122020?
How do I fix CVE-2026-122020?
No fix has been published for CVE-2026-122020 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-122020 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-122020 exists.
Sources
Also known as GHSA-vf69-9xg9-6cc3.