CVE-2026-54056: Kitty is a cross-platform GPU based terminal

Routine

HIGH 7.6UPGRADE

CVE-2026-54056 is a high-severity flaw (CVSS 7.6) affecting kitty. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kitty is a cross-platform GPU based terminal. In versions 0.47.0 and 0.47.1, `kitten dnd` can allow a malicious remote drag-and-drop source to overwrite or truncate arbitrary files writable by the local kitty user. Remote `text/uri-list` drops are staged in a temporary directory, but on case-sensitive filesystems duplicate remote basenames are not de-duplicated. An attacker can first create a staged symlink and then send a same-name regular-file

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-59
Published	2026-06-12
Last modified	2026-10-25

Publisher (CNA): GitHub, Inc. · Vendor: kovidgoyal

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-12 21:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

kovidgoyal kitty UPGRADE

Affected: >= 0.47.0 and < 0.47.2

Fixed in: 0.47.2

Safe to downgrade to: a release before 0.47.0

1. Check installed version

apt-cache policy kitty || rpm -q kitty || kitty --version

2. UPGRADE to 0.47.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kitty

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kitty

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.47.0 (Debian / Ubuntu)

apt-cache madison kitty sudo apt install kitty=<VERSION_BEFORE_0.47.0> sudo apt-mark hold kitty

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kitty sudo dnf downgrade kitty-<VERSION_BEFORE_0.47.0> sudo dnf versionlock add kitty

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-54056?

kitty: upgrade to 0.47.2. Exact commands for each OS are on this page.

Is CVE-2026-54056 being exploited?

CVE-2026-54056 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-54056 affect?

CVE-2026-54056 affects kitty. Severity is high (CVSS 7.6). Kitty is a cross-platform GPU based terminal. In versions 0.47.0 and 0.47.1, `kitten dnd` can allow a malicious remote drag-and-drop source to overwrite or truncate arbitrary files writable by the local kitty user. Remote `text/uri-list` dr

How urgent is CVE-2026-54056?

Priority 36/100. High severity; Public exploit reference

Related CVEs

CVE-2026-54057 HIGH 7.8 UPGRADE Kitty is a cross-platform GPU based terminal

References

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