CVE-2025-49091 Information

Description

KDE Konsole before 25.04.2 allows remote code execution in a certain scenario. It supports loading URLs from the scheme handlers such as a ssh:// or telnet:// or rlogin:// URL. This can be executed regardless of whether the ssh telnet or rlogin binary is available. In this mode there is a code path where if that binary is not available Konsole falls back to using /bin/bash for the given arguments (i.e. the URL) provided. This allows an attacker to execute arbitrary code.

Reference

https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327b5642a2b75 https://invent.kde.org/utilities/konsole/-/tags https://kde.org/info/security/advisory-20250609-1.txt https://konsole.kde.org/changelog.html https://proofnet.de/publikationen/konsole_rce.html https://www.openwall.com/lists/oss-security/2025/06/10/5