USN-8442-1 (UBUNTU-CVE-2026-33633)
Vulnerability from osv_ubuntu – Published: 2026-06-17 15:37 – Updated: 2026-06-17 22:06 – Source website
VLAI
Summary
kitty vulnerabilities
Details
It was discovered that kitty incorrectly handled certain image data. An attacker able to write to the terminal's input could possibly use this issue to cause kitty to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-33633)
It was discovered that kitty incorrectly handled certain graphics commands. An attacker able to write escape sequences to a kitty terminal could possibly use this issue to cause kitty to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-33642)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-33633",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-33642",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "kitty",
"binary_version": "0.15.0-1ubuntu0.2+esm1"
},
{
"binary_name": "kitty-terminfo",
"binary_version": "0.15.0-1ubuntu0.2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "kitty",
"purl": "pkg:deb/ubuntu/kitty@0.15.0-1ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.15.0-1ubuntu0.2+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.14.3-1",
"0.14.4-1",
"0.14.6-1",
"0.15.0-1",
"0.15.0-1build1",
"0.15.0-1ubuntu0.2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-33633",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-33642",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "kitty",
"binary_version": "0.21.2-1ubuntu0.22.04.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "kitty",
"purl": "pkg:deb/ubuntu/kitty@0.21.2-1ubuntu0.22.04.1+esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.21.2-1ubuntu0.22.04.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.19.3-1",
"0.21.2-1",
"0.21.2-1build1",
"0.21.2-1ubuntu0.22.04.1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-33633",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-33642",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "kitty",
"binary_version": "0.32.2-1ubuntu0.4+esm1"
},
{
"binary_name": "kitty-shell-integration",
"binary_version": "0.32.2-1ubuntu0.4+esm1"
},
{
"binary_name": "kitty-terminfo",
"binary_version": "0.32.2-1ubuntu0.4+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "kitty",
"purl": "pkg:deb/ubuntu/kitty@0.32.2-1ubuntu0.4+esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.32.2-1ubuntu0.4+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.26.5-3ubuntu2",
"0.26.5-5ubuntu1",
"0.31.0-3",
"0.31.0-4",
"0.32.2-1",
"0.32.2-1build2",
"0.32.2-1build3",
"0.32.2-1ubuntu0.1",
"0.32.2-1ubuntu0.2",
"0.32.2-1ubuntu0.3",
"0.32.2-1ubuntu0.4"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-33633",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-33642",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:25.10"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "kitty",
"binary_version": "0.41.1-2+deb13u1build0.25.10.1"
},
{
"binary_name": "kitty-shell-integration",
"binary_version": "0.41.1-2+deb13u1build0.25.10.1"
},
{
"binary_name": "kitty-terminfo",
"binary_version": "0.41.1-2+deb13u1build0.25.10.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "kitty",
"purl": "pkg:deb/ubuntu/kitty@0.41.1-2+deb13u1build0.25.10.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.41.1-2+deb13u1build0.25.10.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.39.1-1",
"0.41.1-2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-33633",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-33642",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "kitty",
"binary_version": "0.45.0-1ubuntu0.1~esm1"
},
{
"binary_name": "kitty-shell-integration",
"binary_version": "0.45.0-1ubuntu0.1~esm1"
},
{
"binary_name": "kitty-terminfo",
"binary_version": "0.45.0-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "kitty",
"purl": "pkg:deb/ubuntu/kitty@0.45.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.45.0-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.41.1-2",
"0.43.1-1",
"0.44.0-1",
"0.45.0-1",
"0.45.0-1build1"
]
}
],
"aliases": [],
"details": "It was discovered that kitty incorrectly handled certain image data. An\nattacker able to write to the terminal\u0027s input could possibly use this\nissue to cause kitty to crash, resulting in a denial of service, or\npossibly execute arbitrary code. (CVE-2026-33633)\n\nIt was discovered that kitty incorrectly handled certain graphics commands.\nAn attacker able to write escape sequences to a kitty terminal could\npossibly use this issue to cause kitty to crash, resulting in a denial of\nservice, or possibly execute arbitrary code. (CVE-2026-33642)",
"id": "USN-8442-1",
"modified": "2026-06-17T22:06:46Z",
"published": "2026-06-17T15:37:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8442-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-33633"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-33642"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "kitty vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-33633",
"UBUNTU-CVE-2026-33642"
]
}
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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