CVE-2026-54056

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% 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
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 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 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 entry. The regular-file write uses utils.CreateAt() / openat(O_RDWR|O_CREAT|O_TRUNC) without O_NOFOLLOW, so it follows the attacker-created symlink and writes outside the staging directory before final overwrite confirmation runs. This appears related in class to the file-transfer symlink advisory, but it is a different bug: it affects kitten dnd remote drag-and-drop staging, uses different vulnerable code (kittens/dnd/drop.go and tools/utils/file_at_fd.go), and reproduces on commit 4aa4a5c0567a92553a8c20a88a4352da637fca5d, after the file-transfer O_NOFOLLOW fix. Version 0.47.2 patches the issue.

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
18.5%
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

Arbitrary file overwrite via symlink following in `kitten dnd` remote drop staging · Advisory · kovidgoyal/kitty · GitHub

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-r892-cv7q-fw8x

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 100× 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 103 total refreshes for this CVE.

  1. 2026-07-12 17:30 UTCEG score recompute
  2. 2026-07-12 05:46 UTCEPSS rescore
  3. 2026-07-12 04:43 UTCEG score recompute
  4. 2026-07-11 15:51 UTCEG score recompute
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 02:53 UTCEG score recompute
  8. 2026-07-10 13:05 UTCEG score recompute
  9. 2026-07-09 21:37 UTCEG score recompute
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 04:30 UTCEG score recompute
  13. 2026-07-08 15:25 UTCEG score recompute
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-08 02:43 UTCEG score recompute
  17. 2026-07-07 14:00 UTCEG score recompute
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-07 00:58 UTCEG score recompute
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 16:27 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-06 02:23 UTCEPSS rescore
  25. 2026-07-06 01:17 UTCEG score recompute
Show 75 more
  1. 2026-07-05 12:35 UTCEG score recompute
  2. 2026-07-05 02:31 UTCEPSS rescore
  3. 2026-07-05 02:30 UTCEPSS rescore
  4. 2026-07-04 23:40 UTCEG score recompute
  5. 2026-07-04 10:57 UTCEG score recompute
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-04 06:31 UTCEPSS rescore
  8. 2026-07-03 22:15 UTCEG score recompute
  9. 2026-07-03 09:33 UTCEG score recompute
  10. 2026-07-02 20:51 UTCEG score recompute
  11. 2026-07-02 08:09 UTCEG score recompute
  12. 2026-07-01 19:26 UTCEG score recompute
  13. 2026-07-01 15:07 UTCEPSS rescore
  14. 2026-07-01 06:44 UTCEG score recompute
  15. 2026-06-30 23:22 UTCEPSS rescore
  16. 2026-06-30 18:01 UTCEG score recompute
  17. 2026-06-30 05:18 UTCEG score recompute
  18. 2026-06-29 16:19 UTCEG score recompute
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-29 03:37 UTCEG score recompute
  22. 2026-06-28 14:53 UTCEG score recompute
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 02:11 UTCEG score recompute
  27. 2026-06-27 13:28 UTCEG score recompute
  28. 2026-06-27 03:08 UTCEPSS rescore
  29. 2026-06-27 00:45 UTCEG score recompute
  30. 2026-06-26 12:03 UTCEG score recompute
  31. 2026-06-25 22:31 UTCEG score recompute
  32. 2026-06-25 13:49 UTCEPSS rescore
  33. 2026-06-25 09:46 UTCEG score recompute
  34. 2026-06-24 21:04 UTCEG score recompute
  35. 2026-06-24 14:05 UTCEPSS rescore
  36. 2026-06-24 08:22 UTCEG score recompute
  37. 2026-06-23 21:33 UTCEPSS rescore
  38. 2026-06-23 21:33 UTCEPSS rescore
  39. 2026-06-23 19:40 UTCEG score recompute
  40. 2026-06-23 06:49 UTCEG score recompute
  41. 2026-06-22 17:29 UTCEG score recompute
  42. 2026-06-22 14:25 UTCEPSS rescore
  43. 2026-06-22 14:25 UTCEPSS rescore
  44. 2026-06-22 03:50 UTCEG score recompute
  45. 2026-06-21 14:56 UTCEPSS rescore
  46. 2026-06-21 14:56 UTCEPSS rescore
  47. 2026-06-21 11:43 UTCEG score recompute
  48. 2026-06-21 01:59 UTCEPSS rescore
  49. 2026-06-21 01:59 UTCEPSS rescore
  50. 2026-06-20 22:54 UTCEG score recompute
  51. 2026-06-20 10:09 UTCEG score recompute
  52. 2026-06-19 21:22 UTCEG score recompute
  53. 2026-06-19 19:26 UTCEPSS rescore
  54. 2026-06-19 19:26 UTCEPSS rescore
  55. 2026-06-19 08:23 UTCEG score recompute
  56. 2026-06-18 19:40 UTCEG score recompute
  57. 2026-06-18 17:52 UTCEPSS rescore
  58. 2026-06-18 17:52 UTCEPSS rescore
  59. 2026-06-18 06:59 UTCEG score recompute
  60. 2026-06-17 17:53 UTCEPSS rescore
  61. 2026-06-17 16:58 UTCEG score recompute
  62. 2026-06-17 03:55 UTCEG score recompute▼ 0.50
  63. 2026-06-16 17:53 UTCEPSS rescore
  64. 2026-06-16 16:16 UTCNVD updateCVSS v3 → 7.1
  65. 2026-06-16 15:13 UTCEG score recompute
  66. 2026-06-16 02:29 UTCEG score recompute
  67. 2026-06-15 17:49 UTCEPSS rescore
  68. 2026-06-15 17:49 UTCEPSS rescore
  69. 2026-06-15 13:47 UTCEG score recompute
  70. 2026-06-15 01:05 UTCEG score recompute
  71. 2026-06-14 23:18 UTCEPSS rescore
  72. 2026-06-14 12:22 UTCEG score recompute
  73. 2026-06-13 23:40 UTCEG score recompute
  74. 2026-06-13 23:00 UTCEPSS rescore
  75. 2026-06-13 10:58 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54056?
CVE-2026-54056 is a high vulnerability published on June 12, 2026. 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…
When was CVE-2026-54056 disclosed?
CVE-2026-54056 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-2026-54056 actively exploited?
CVE-2026-54056 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54056?
CVE-2026-54056 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-54056?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54056, 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

Explore the affected products and dependency analysis for CVE-2026-54056

Explore →

Is Your Infrastructure Affected by CVE-2026-54056?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs