FKIE_CVE-2026-33633

Vulnerability from fkie_nvd - Published: 2026-05-19 18:16 - Updated: 2026-05-22 21:04
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0.
References
security-advisories@github.comhttps://github.com/kovidgoyal/kitty/commit/e9661f0f3afb4e4dbffa509adfb3df3c9780ad34Patch
security-advisories@github.comhttps://github.com/kovidgoyal/kitty/security/advisories/GHSA-j68c-v8x4-269gExploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/kovidgoyal/kitty/security/advisories/GHSA-j68c-v8x4-269gExploit, Vendor Advisory
Impacted products
Vendor Product Version
kovidgoyal kitty *
To clipboard 

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      "value": "Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal\u0027s stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0."
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  "id": "CVE-2026-33633",
  "lastModified": "2026-05-22T21:04:23.363",
  "metrics": {
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          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "NONE",
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