cvedb.io
CVE-2026-33633
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-19T18:16:21.343 · Last modified 2026-06-17T10:37:49.067

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.

Affected products

kovidgoyal — kitty

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.