Kitty vulnerable to command injection via unsanitized OSC 21 query reply
Priority HIGH 67CWE-150Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00172 6th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed kitty (kovidgoyal): 0.47.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kovidgoyal | kitty | before 0.47.3 | 0.47.3 | Patch available | CNA |
- kitty Vendorkovidgoyal Affected before 0.47.3 Fixed in 0.47.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kovidgoyal:kitty:*:*:*:*:*:*:*:* | before 0.47.3 | Vulnerable | kovidgoyal |
- cpe:2.3:a:kovidgoyal:kitty:*:*:*:*:*:*:*:* Versions before 0.47.3 Vulnerable ·kovidgoyal
Remediation
- Fix · CNA kitty (kovidgoyal) Fixed in 0.47.3
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54057
References
More kovidgoyal Kitty vulnerabilities
- TI-2026-26023 Kitty has a Heap Buffer Over-Read/Write via Integer Overflow in compose_rectangles Bounds Check CVSS 3.1CRITICAL 9.9
- TI-2026-26014 Kitty has a Heap Buffer Overflow in its Graphics Protocol Handler CVSS 3.1HIGH 8.8
- TI-2025-28495 Origin validation error in kitty CVSS 3.1HIGH 7.8
- TI-2026-38990 Kitty has an arbitrary file overwrite via symlink following in `kitten dnd` remote drop staging CVSS 3.1HIGH 7.6
- TI-2026-38989 Kitty has an Arbitrary File Write via Symlink Race Condition in File Transmission Protocol CVSS 3.1MEDIUM 5.0
- TI-2020-18102 The Graphics Protocol feature in graphics.c in kitty before 0.19.3 allows remote… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-54057 · CVE Program
- CVE-2026-54057 · NVD
- FIRST EPSS
- CVE-2026-54057 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences