CVE-2026-113411 Nerimity Desktop Window Open mainWindow.js shell.openExternal improper authorization in handler for custom url scheme

Medium 5.3 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-113411?

CVE-2026-113411 is a medium-severity vulnerability in Nerimity Desktop, published on 20 Oct 2026.

Official description

A vulnerability was found in Nerimity Desktop up to 2.2.2. Affected by this issue is the function shell.openExternal of the file src/mainWindow.js of the component Window Open Handler. The manipulation of the argument url results in improper authorization in handler for custom url scheme. The attack can be executed remotely. The exploit has been made public and could be used. Upgrading to version 2.3.3 can resolve this issue. The patch is identified as f4df21bbc290f6c1956d899cf4da9e963074a6e4. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Weakness: CWE-939, CWE-285

Which versions are affected by CVE-2026-113411?

How do I fix CVE-2026-113411?

No fix has been published for CVE-2026-113411 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-113411 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113411 exists.

Sources

Also known as GHSA-5mgq-c58r-mh8w.

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