CVE-2026-54055

Katalog CVE

CVSS 5.0 · Medium EPSS 0,10%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada kovidgoyal kitty. Skor CVSS 3.1 5.0 (Medium) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

12 Juni 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.0 (Medium), sumber github.com
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-426: Untrusted Search Path

EPSS (30 hari)

0,10% peluang dieksploitasi; lebih tinggi dari 0,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/kovidgoyal/kitty/security/advisories/GHSA-q446-x7q6-vcxh mitigasi · advisory vendor