CVE-2026-45035 Tabby: RCE via `tabby://run` URL Scheme
Attackers can execute arbitrary OS commands with user privileges by tricking victims into clicking a malicious tabby:// URL.
- 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-2026-45035?
CVE-2026-45035 is a critical command injection 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 1.0.233, Tabby registers itself as the handler for the tabby:// URL scheme on all platforms. The URL scheme handler supports a run command that directly executes OS commands with no user confirmation, sanitization, or sandboxing. An attacker can craft a malicious link (tabby://run?command=...) and deliver it via a website, email, chat message, or any other medium. When a victim clicks the link, the OS launches Tabby which immediately spawns the specified command as a child process with the user's full privileges. This is a zero-click-after-link-visit RCE vulnerability. This vulnerability is fixed in 1.0.233.
Weakness: CWE-78
Which versions are affected by CVE-2026-45035?
It affects 1 product.
Products include Tabby Tabby.
How do I fix CVE-2026-45035?
No fix has been published for CVE-2026-45035 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-45035 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45035 exists.
Other vulnerabilities in Eugeny tabby
- 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-2026-45037 Tabby: Unsafe protocol handler execution via terminal linkifier allows arbitrary OS protocol invocation
- CVE-2026-45036 Command injection in tabby
Sources
Also known as GHSA-hf8h-rjrf-3jg6.