SB2026092258 - Improper Neutralization of Escape, Meta, or Control Sequences in kitty

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Main Vulnerability Database SB2026092258

SB2026092258 - Improper Neutralization of Escape, Meta, or Control Sequences in kitty

Published: September 22, 2026

Security Bulletin ID SB2026092258
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Neutralization of Escape, Meta, or Control Sequences (CVE-ID: CVE-2026-54057)

CWE-ID: CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences

CVSSv4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary commands.

The vulnerability exists due to improper neutralization of escape, meta, or control sequences in OSC 21 color-control query reply handling when processing a crafted OSC 21 query reply. A remote attacker can provide a query containing newline characters to execute arbitrary commands.

User interaction is required to process crafted terminal content.


Remediation

Install update from vendor's website.

References