CVE-2026-45037 Tabby: Unsafe protocol handler execution via terminal linkifier allows arbitrary OS protocol invocation
A malicious server can send crafted terminal output to trigger arbitrary OS protocol handlers in Tabby, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-45037?
CVE-2026-45037 is a high-severity vulnerability in Eugeny tabby, published on 15 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-45037?
It affects 1 product.
Products include Tabby Tabby.
How do I fix CVE-2026-45037?
No fix has been published for CVE-2026-45037 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-45037 being exploited?
There is no known exploitation of CVE-2026-45037 in the wild and no public exploit code.
Other vulnerabilities in Eugeny tabby
- CVE-2026-45035 Tabby: RCE via `tabby://run` URL Scheme
- CVE-2026-45038 Tabby: Dragging and Dropping a File into Tabby Can Lead to Code Execution
- CVE-2026-46709 Tabby: Drag-and-drop path injection still allows RCE via shell command substitution (incomplete fix for CVE-2026-45038)
- CVE-2026-45036 Command injection in tabby
Sources
Also known as GHSA-cmpc-v2x9-j9x9.