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CVE-2026-95832

📛 CVE Title

Reflected unknown field names in the kitty colour control escape code allow command execution in the user's shell

Description

Improper Neutralization of Special Elements in Output Used by a Downstream Component in the colour control escape code handler in kitty from 0.47.3 before 0.49.0 allows a program writing to the terminal to execute an arbitrary command in the user's shell, because color_control() in kitty/window.py answers a query for an unrecognised field name by placing that field name into the reply, and write_escape_code_to_child() in kitty/screen.c then writes the reply to the pseudoterminal master, where it is not distinguishable from input typed by the user, without neutralising it for the shell that reads it. The payload is reduced to printable ASCII before the field name is echoed, which is the restriction introduced in 0.47.3 as the fix for CVE-2026-54057, and the record and field separators ; and = are consumed as delimiters, but every other printable character survives, which is sufficient to compose a shell command. A newline is available from handle_remote_ssh() in kitty/window.py, which writes the bytes yielded by get_ssh_data() in kittens/ssh/utils.py, the first of which begin with a newline, to the pseudoterminal master before any credential carried in the request is checked. The reply is framed as an OSC sequence carrying the escape code number, the field name, and the literal value ?. This results in execution of an attacker-chosen command with the privileges of the user running the terminal.

Overview

State
PUBLISHED
Assigner (CNA)
Secur0
CVSS severity
CRITICAL
CVSS score
CVSS 9.3 / 10 9.3 9.3 / 10
CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Effective score
9.3 / 10 CRITICAL source: CNA overview
CWE(s)
CWE-74
Reserved
2026-09-22
Published
2026-09-25 12:54 UTC
Last updated
2026-09-25 15:30 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95832.json
Linked Threat
CVE-2026-95832 — Reflected unknown field names in the kitty colour control escape code allow command execution in the user's shell

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-09-25 13:17:24 UTC
NVD last modified
2026-09-25 16:17:30 UTC

NVD / KEV / EPSS data refreshed 2026-09-26 04:36 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

Affected products (1)

VendorProductVersionsPlatforms
Kovid Goyal kitty 0.47.3 (affected) —

Vendor references (5)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-95832.json.

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