CVE-2026-54055Kitty is a cross-platform GPU based terminal.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.2, a local privilege escalation vulnerability exists in kitty's file transmission protocol where a child process running in the terminal can write to arbitrary files on the filesystem by exploiting a TOCTOU (Time-of-Check-Time-of-Use) race condition between symlink validation and file creation. The `os.open()` call used to create files does not use `O_NOFOLLOW`, allowing an attacker to create a symlink between the initial stat check and the actual file open, causing the write to follow the symlink to an arbitrary destination. Version 0.47.2 fixes the issue.
- CVSS
- 5.0 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-59, CWE-367, CWE-426
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kovidgoyal kitty kovidgoyal:kitty | before 0.47.2 | NVD |
References
- https://github.com/kovidgoyal/kitty/security/advisories/GHSA-q446-x7q6-vcxhmitigation, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.