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.
CVE-2026-95832
“—” beside the score: it is equal to the CVSS score beside it.
This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (5th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-87065 (ENISA EUVD) · GHSA-hvwf-v5fx-xvj6 (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
Fixed versions, as the CVE record's CNA (Secur0) states them: "Upgrade to kitty 0.49.0 or later."
- CVSS v3
- 9.3
- EG Score
- 9.3CRITICALmedium confidence
- EG Risk
- 42EG Risk 42/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity93% × 45%Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.2% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.2%
- EPSS %ILE
- 5th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-02). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
September 25, 2026
Last Modified
September 29, 2026
Advisory Details (5)
Auto-updated Oct 3, 2026CVE-2026-95832 · Reflected unknown field names in the kitty colour control escape code allow command execution in the user's shell | Vulnerabilities published by Secur0
https://secur0.com/en/cna/cve-list/cve-2026-95832-kitty-color-control-command-executionversion 0.49.0
Patch available: kovidgoyal/kitty v0.49.0
https://github.com/kovidgoyal/kitty/releases/tag/v0.49.0commit 57bb144d96c0 (kovidgoyal/kitty)
Fix landed in kovidgoyal/kitty commit 57bb144d96c0 — awaiting tagged release
https://github.com/kovidgoyal/kitty/commit/57bb144d96c0f9d48a2b0a6d43c9a23d2a091cbfcommit 03fbdad85549 (kovidgoyal/kitty)
Fix landed in kovidgoyal/kitty commit 03fbdad85549 — awaiting tagged release
https://github.com/kovidgoyal/kitty/commit/03fbdad855490470233954bc810e517027e5e640Vendor Advisories for CVE-2026-95832(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(3 across 3 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| kitty | 0.26.5-5 ... 0.48.2-1.1 (40 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| kitty | 0.41.1-2 ... 0.48.2-1.1 (18 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| kitty | 0.41.1-2 ... 0.48.2-1.1 (16 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 21× in last 7d / 126× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 197 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 97 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-03 00:45 UTCEG score recompute
- 2026-11-03 00:45 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-11-01 23:57 UTCEG score recompute
- 2026-11-01 23:57 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-31 23:09 UTCEG score recompute
- 2026-10-31 23:09 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-30 22:22 UTCEG score recompute
- 2026-10-30 22:22 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-29 21:34 UTCEG score recompute
- 2026-10-29 21:34 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-28 20:47 UTCEG score recompute
- 2026-10-28 20:46 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-27 19:57 UTCEG score recompute
- 2026-10-27 19:57 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-26 19:09 UTCEG score recompute
- 2026-10-26 19:08 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-25 16:36 UTCEG score recompute
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- 2026-10-25 16:36 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
- 2026-10-25 13:48 UTCEG score recompute
- 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-24 15:48 UTCEG score recompute
- 2026-10-24 15:47 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-23 14:56 UTCEG score recompute
- 2026-10-23 14:56 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-22 14:06 UTCEG score recompute
- 2026-10-22 14:06 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-21 13:15 UTCEG score recompute
- 2026-10-21 13:14 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-20 12:07 UTCEG score recompute
- 2026-10-20 12:07 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-19 11:16 UTCEG score recompute
- 2026-10-19 11:15 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-18 08:33 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-18 02:57 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-17 07:45 UTCEG score recompute
- 2026-10-17 07:44 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-16 06:56 UTCEG score recompute
- 2026-10-16 06:56 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-15 05:38 UTCEG score recompute
- 2026-10-15 05:38 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-14 01:18 UTCEG score recompute
- 2026-10-14 01:18 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-12 21:30 UTCEG score recompute
- 2026-10-12 21:30 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-12 14:41 UTCEG score recompute
- 2026-10-12 01:19 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-11 20:58 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-11 19:11 UTCEG score recompute
- 2026-10-11 16:36 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-11 16:27 UTCEG score recompute
- 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-11 13:39 UTCEG score recompute
- 2026-10-11 12:17 UTCEG score recompute
- 2026-10-11 12:17 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-11 07:58 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-11 03:32 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 23:08 UTCEG score recompute
- 2026-10-10 23:08 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-10 18:49 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 14:29 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 10:08 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 05:47 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-10 01:28 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-09 21:07 UTCEG score recompute
- 2026-10-09 21:07 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-09 16:48 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-09 12:25 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-09 06:19 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-09 01:59 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-08 21:40 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-08 16:57 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-08 10:57 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-08 06:37 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-08 02:18 UTCEG score recompute
- 2026-10-08 02:18 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
- 2026-10-07 21:58 UTCGHSA enrichmentGHSA-hvwf-v5fx-xvj6 · GitHub severity CRITICAL
Related CVEs(same product + same CWE)
Same product
10 shownDebian:12:kitty
Frequently asked(5)
What is CVE-2026-95832?
When was CVE-2026-95832 made public?
Is CVE-2026-95832 actively exploited?
What is the CVSS score of CVE-2026-95832?
How do I remediate CVE-2026-95832?
Dependency Blast Radius
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