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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-33633

37
FAUCET Score

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.

First published: May 19, 2026Last modified: May 19, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 0.47.0CPE matchmatch criteria
cpe:2.3:a:kovidgoyal:kitty:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 34th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

ubuntupatch availablevia ubuntu_usn
Product: kitty (focal)Fixed in: 0.15.0-1ubuntu0.2+esm1
ubuntupatch availablevia ubuntu_usn
Product: kitty (jammy)Fixed in: 0.21.2-1ubuntu0.22.04.1+esm1
ubuntupatch availablevia ubuntu_usn
Product: kitty (noble)Fixed in: 0.32.2-1ubuntu0.4+esm1
ubuntupatch availablevia ubuntu_usn
Product: kitty (questing)Fixed in: 0.41.1-2+deb13u1build0.25.10.1
ubuntupatch availablevia ubuntu_usn
Product: kitty (resolute)Fixed in: 0.45.0-1ubuntu0.1~esm1

Vendor Advisories (1)

ubuntuUSN-8442-1

kitty vulnerabilities

Jun 17, 2026

References

github.com / kovidgoyal/kitty/commit/e9661f0f3afb4e4dbffa509adfb3df3c9780ad34
Patch
github.com / kovidgoyal/kitty/security/advisories/GHSA-j68c-v8x4-269g
ExploitVendor Advisory