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VulnerabilityPublished Updated

CVE-2026-54055: kovidgoyal kitty · Link Following

Affects kovidgoyal kittySource CVE Database V5

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Not known to be exploited · CVSS 5.0 Medium : upgrade to 0.47.2 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
5.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.07% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.47.2
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade kitty and kovidgoyal/kitty to 0.47.2.

Affected software

ProductAffectedFixed in
kovidgoyalkittyAffected
  • <0.47.2
Fixed in
  • 0.47.2
GitHubkovidgoyal/kittypkg:github/kovidgoyal/kittyOther threatsAffected
  • <0.47.2
Fixed in
  • 0.47.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in kitty version 0.47.2. Users should upgrade to version 0.47.2 or later to remediate this vulnerability. No other mitigations are indicated by the vendor advisory or source data.

Description

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.

References

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