Upstream information

CVE-2026-54055 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (GitHub)
Base Score 5
Vector 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 Impact None
Integrity Impact High
Availability Impact Low
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1268286 [NEW]

No SUSE Security Announcements cross referenced.


SUSE Timeline for this CVE

CVE page created: Sat Jun 13 00:01:01 2026
CVE page last modified: Wed Jun 17 20:34:33 2026