CVE-2026-54055

Published: Giu 12, 2026 Last Modified: Giu 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,0
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: low

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 3 Days)

59

Improper Link Resolution Before File Access ('Link Following')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Other
Potential Impacts:
Read Files Or Directories Modify Files Or Directories Bypass Protection Mechanism Execute Unauthorized Code Or Commands
Applicable Platforms
Operating Systems: Windows, Unix
Likelihood of Exploit: Medium
View CWE Details
367

Time-of-check Time-of-use (TOCTOU) Race Condition

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Other Non-Repudiation
Potential Impacts:
Alter Execution Logic Unexpected State Modify Application Data Modify Files Or Directories Modify Memory Other Hide Activities
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
View CWE Details
426

Untrusted Search Path

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Read Files Or Directories
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://github.com/kovidgoyal/kitty/security/advisories/GHS…
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-q446-x7q6-vcxh