CVE-2026-33633 - Kitty has a Heap Buffer Overflow in its Graphics Protocol Handler

CVE-2026-33633 - Kitty has a Heap Buffer Overflow in its Graphics Protocol Handler

https://cvefeed.io/rssfeed/latest.atom / Tue, 05/19/2026 - 23:24
CVE ID :CVE-2026-33633
Published : May 19, 2026, 6:16 p.m. | 2 hours, 42 minutes ago
Description :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.
Severity: 7.5 | HIGH
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