CVE-2026-45037: Tabby: Unsafe protocol handler execution via terminal linkifier allows arbitrary OS protocol invocation
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.232, Tabby's terminal linkifier passes any detected URI directly to the operating system's protocol handler without validating the protocol scheme. This allows a malicious SSH or Telnet server to send crafted terminal output containing dangerous protocol URIs which Tabby renders as clickable links, triggering arbitrary OS protocol handlers on the victim's machine. This vulnerability is fixed in 1.0.232.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-45037?
The severity of CVE-2026-45037 is high due to its ability to allow arbitrary OS protocol invocation.
How do I fix CVE-2026-45037?
To fix CVE-2026-45037, upgrade Tabby to version 1.0.232 or later.
What type of vulnerability is CVE-2026-45037?
CVE-2026-45037 is categorized as an unsafe protocol handler execution vulnerability.
Which versions of Tabby are affected by CVE-2026-45037?
Versions of Tabby prior to 1.0.232 are affected by CVE-2026-45037.
What does CVE-2026-45037 allow an attacker to do?
CVE-2026-45037 allows an attacker to invoke arbitrary OS protocols by exploiting the terminal linkifier.