CVE-2026-54055
MEDIUM EPSS 0.1%
Published Jun 12, 20262w ago · Modified Jun 17, 20262w ago
5.0 CVSS 3.1
Published Jun 12, 2026 2w ago
Last Modified Jun 17, 2026 2w ago
Description
Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.2, a local privilege escalation vulnerability exists in kitty's file transmission protocol where a child process running in the terminal can write to arbitrary files on the filesystem by exploiting a TOCTOU (Time-of-Check-Time-of-Use) race condition between symlink validation and file creation. The `os.open()` call used to create files does not use `O_NOFOLLOW`, allowing an attacker to create a symlink between the initial stat check and the actual file open, causing the write to follow the symlink to an arbitrary destination. Version 0.47.2 fixes the issue.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity High
Availability Low
Threat Intelligence
EPSS Exploit Probability
0.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-367
CWE-426
CWE-59
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| kovidgoyal | kitty | * | <0.47.2 |
References 1
- github.com https://github.com/kovidgoyal/kitty/security/advisories/GHSA-q446-x7q6-vcxh
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.