RCE in Topluyo App

CVE-2026-115904

Topluyo is a social networking platform. A vulnerability exists in Topluyo Desktop for Linux prior to version 2026.9.2410 where user-controlled URLs are unsafely processed, leading to OS Command Injection via the `openExternalLinks()` routine in `utils.js`. An attacker who controls a target URL can execute arbitrary operating system commands with the privileges of the user running the application upon opening the link. Version 2026.9.2410 patches the issue.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-115904?
CVE-2026-115904 is a critical-severity vulnerability in Topluyo App, classified under OS Command Injection. CVSS score: 9.6/10. Published 2026-10-28.
How severe is CVE-2026-115904?
Critical severity. CVSS v3 base score is 9.6 out of 10.