CVE-2026-42850 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-42850HIGH

kovidgoyal kitty — Kitty has a shell command injection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   P   N   A   H   H   N    7.4   .0029   21.3     —

AFFECTED
  Product  Versions    Fixed
  kitty    < 0.47.0 –  —

TIMELINE
  Apr 30  Reserved by GitHub_M
  Jun 12  EXPLOIT PUBLISHED — CVE-2026-42850 (kovidgoyal kitty). Public exploit reference added.
  Jun 12  Published (CNA: GitHub_M)

CWE-77 · CNA: GitHub_M · CVSS v4.0 · 1 reference · NVD status: Analyzed

Description

Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.0, it is possible to inject commands within the subshell through kitty error. A special escape code will make kitty return an error, this error is not escaped and will be correctly echoed back to the terminal with CRLF, as such it will be run by the shell in use. To exploit this bug, the victim must use a netcat or a similar program to connect to the attacker, or else listening for someone to connect. Once this condition is set, an attacker could pwn the computer of the victim using a special kitty's escape code that will run a command in the shell in use. Version 04.7.0 fixes the issue.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 30, 2026	Reserved	Reserved by GitHub_M
June 12, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-42850 (kovidgoyal kitty). Public exploit reference added.
June 12, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
kovidgoyal	kitty	—	< 0.47.0	—

Weaknesses

CWE-77

References (1)

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-p64q-59hq-5q65 [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-42850 at cve.org

Vendors: kovidgoyal

Weaknesses: CWE-77

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-42850 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.