CVE-2026-54057

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 94% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.8
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 16, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Command injection via unsanitized OSC 21 query reply · Advisory · kovidgoyal/kitty · GitHub

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
kitty0.19.3-1 ... 0.48.2-1 (47 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
kitty0.26.5-5 ... 0.48.2-1 (39 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
kitty0.41.1-2 ... 0.48.2-1 (16 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
kitty0.41.1-2 ... 0.47.0-3 (12 versions)0.47.3-1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 23:44 UTCEG score recompute
  3. 2026-08-23 09:58 UTCEG score recompute
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  1. 2026-08-09 13:46 UTCEPSS rescore
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  25. 2026-07-26 20:29 UTCEG score recompute
  26. 2026-07-26 14:54 UTCEPSS rescore
  27. 2026-07-25 14:18 UTCEPSS rescore
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  30. 2026-07-23 03:19 UTCEG score recompute
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  72. 2026-06-23 21:33 UTCEPSS rescore
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  74. 2026-06-22 14:25 UTCEPSS rescore
  75. 2026-06-22 14:25 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-54057?
CVE-2026-54057 is a high vulnerability published on June 12, 2026. 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.
When was CVE-2026-54057 disclosed?
CVE-2026-54057 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54057 actively exploited?
CVE-2026-54057 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.9% of all scored CVEs.
What is the CVSS score of CVE-2026-54057?
CVE-2026-54057 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-54057?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54057, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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