CVE-2026-45035: Tabby (formerly Terminus) is a highly configurable terminal emulator

Q: How do I fix CVE-2026-45035?

tabby: upgrade to 1.0.233. Exact commands for each OS are on this page.

Q: Is CVE-2026-45035 being exploited?

CVE-2026-45035 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-45035 affect?

CVE-2026-45035 affects tabby. Severity is high (CVSS 8.8). 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

Q: How urgent is CVE-2026-45035?

Priority 44/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-45035 is a high-severity flaw (CVSS 8.8) affecting tabby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-05-15
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: tabby

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-15 17:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

tabby tabby UPGRADE

Affected: < 1.0.233

Fixed in: 1.0.233

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tabby || rpm -q tabby || tabby --version

2. UPGRADE to 1.0.233 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tabby

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tabby

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45035?

tabby: upgrade to 1.0.233. Exact commands for each OS are on this page.

Is CVE-2026-45035 being exploited?

CVE-2026-45035 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45035 affect?

CVE-2026-45035 affects tabby. Severity is high (CVSS 8.8). 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

How urgent is CVE-2026-45035?

Priority 44/100. High severity; Public exploit reference

Related CVEs

CVE-2026-45037 HIGH 7.1 UPGRADE Tabby (formerly Terminus) is a highly configurable terminal emulator
CVE-2026-45036 HIGH 7.0 UPGRADE Tabby (formerly Terminus) is a highly configurable terminal emulator
CVE-2026-45038 HIGH 7.8 UPGRADE Tabby (formerly Terminus) is a highly configurable terminal emulator
CVE-2026-46709 HIGH 7.8 UPGRADE Tabby (formerly Terminus) is a highly configurable terminal emulator

References

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