CVE-2026-54057: kovidgoyal kitty Code Injection
CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-54057DEBIAN-CVE-2026-54057openSUSE-SU-2026:11021-1
Published 12-06-2026Last modified 16-06-2026
Vulnerability summary
CVE-2026-54057 is a high (CVSS 7.8) Code Injection vulnerability in kovidgoyal kitty. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 12-06-2026PublishedVulnerability first disclosed.
- 16-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 4 sources · 2 versionsHigh 7.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- NVDNIST7.3HighCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
High 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
0.00 pp
From 0.17% on 22-09-2026
22-09-202622-10-2026
EPSS score0.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundKitty
Maturity: poc
Weaknesses
CWE · root cause- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
- CWE-150Improper Neutralization of Escape, Meta, or Control SequencesThe product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component.
Affected systems
Debian1 product
- kittyAll versions (No fix recorded) | < 0.41.1-2+deb13u2 | < 0.47.3-1
Kovidgoyal1 product
- kitty< 0.47.3
Opensuse1 product
- kitty&distro=openSUSE Tumbleweed< 0.47.3-1.1
Ubuntu1 product
- kittyAll versions (No fix recorded) | < 0.45.0-1ubuntu0.1~esm2
4 vendors · 4 products
References
6 links- github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6X Refsource CONFIRMREPORTExploitVendor Advisory
