Vulnerability · Published Jun 12, 2026 · Assigned by GitHub_M
CVE-2026-54057Kitty vulnerable to command injection via unsanitized OSC 21 query reply
High 7.3
In plain English
A high-severity code injection in kitty from kovidgoyal. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)7.3High
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.3, kitty's OSC 21 (color-control) query reply reflects attacker-controlled bytes, including newlines, into the shell's input without sanitization. Version 0.47.3 fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | kitty | no fix listed | DEBIAN-CVE-2026-54057 |
| Debian:13 | kitty | 0.41.1-2+deb13u2 | DEBIAN-CVE-2026-54057 |
| Debian:14 | kitty | 0.47.3-1 | DEBIAN-CVE-2026-54057 |
| Ubuntu:25.10 | kitty | no fix listed | UBUNTU-CVE-2026-54057 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| kovidgoyal | kitty | < 0.47.3 |
Weakness: CWE-94, CWE-150 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6 x_refsource_CONFIRM