CVE-2026-42851 (GCVE-0-2026-42851)

Vulnerability from cvelistv5 – Published: 2026-06-12 20:00 – Updated: 2026-06-12 20:00
VLAI
Title
@kitty-edit DCS + --color=geninclude vulnerable to Unauthenticated in-process RCE
Summary
Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.0, a program able to write bytes to a kitty terminal — a remote SSH peer, a downloaded file viewed with `cat`, a log line, an email body rendered in `less`, an issue body in a TUI, etc. — can cause kitty to execute attacker-supplied Python inside the running kitty process, with the user's full privileges. There is no approval prompt, no remote-control permission requirement, no shell-integration interaction, no clipboard touch, and no editor interaction. Version 0.47.0 fixes the issue.
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
kovidgoyal kitty Affected: < 0.47.0
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "kitty",
          "vendor": "kovidgoyal",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.47.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.0, a program able to write bytes to a kitty terminal \u2014 a remote SSH peer, a downloaded file viewed with `cat`, a log line, an email body rendered in `less`, an issue body in a TUI, etc. \u2014 can cause kitty to execute attacker-supplied Python inside the running kitty process, with the user\u0027s full privileges. There is no approval prompt, no remote-control permission requirement, no shell-integration interaction, no clipboard touch, and no editor interaction. Version 0.47.0 fixes the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-12T20:00:23.386Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-w98g-hpvr-r332",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-w98g-hpvr-r332"
        }
      ],
      "source": {
        "advisory": "GHSA-w98g-hpvr-r332",
        "discovery": "UNKNOWN"
      },
      "title": "@kitty-edit DCS + --color=geninclude vulnerable to Unauthenticated in-process RCE"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42851",
    "datePublished": "2026-06-12T20:00:23.386Z",
    "dateReserved": "2026-04-30T16:44:48.378Z",
    "dateUpdated": "2026-06-12T20:00:23.386Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-42851",
      "date": "2026-06-14",
      "epss": "0.0002",
      "percentile": "0.05695"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-42851\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-06-12T20:16:45.420\",\"lastModified\":\"2026-06-12T20:16:45.420\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.0, a program able to write bytes to a kitty terminal \u2014 a remote SSH peer, a downloaded file viewed with `cat`, a log line, an email body rendered in `less`, an issue body in a TUI, etc. \u2014 can cause kitty to execute attacker-supplied Python inside the running kitty process, with the user\u0027s full privileges. There is no approval prompt, no remote-control permission requirement, no shell-integration interaction, no clipboard touch, and no editor interaction. Version 0.47.0 fixes the issue.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"},{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://github.com/kovidgoyal/kitty/security/advisories/GHSA-w98g-hpvr-r332\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}


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