CVE-2026-54593

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (50th percentile of EPSS-scored CVEs). 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, secondary
Elevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Pterodactyl is a free, open-source game server management panel. Prior to Panel version 1.12.3 and Wings version 1.12.2, the Wings /upload/file endpoint accepted any valid panel-signed JWT that contained server_uuid, user_uuid, and unique_id claims without checking the token's intended purpose; because the Panel issues JWTs carrying those same claims for lower-privilege operations such as WebSocket authentication and file-download links, an authenticated subuser could reuse one of those tokens (for example a WebSocket token obtained with only the websocket.connect permission) by replaying it against /upload/file to write arbitrary files to the same server, despite never being granted the file.create permission. This issue is fixed in Panel version 1.12.3 and Wings version 1.12.2.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
50th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 28, 2026

Last Modified

July 30, 2026

Advisory Details (4)

Auto-updated Jul 28, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github.
github_commit Patch Available

commit d0ddc8084447 (pterodactyl/wings)

Patch available: pterodactyl/wings v1.12.2 (contains commit d0ddc8084447)

https://github.com/pterodactyl/wings/commit/d0ddc80844479302abdaf9654de3bacd511c0f5c
githubMentions a patch (unverified)🟡 PoC Available

Improper JWT scoping allows subuser to upload files when not explicitly granted `file.create` permissions · Advisory · pterodactyl/panel · GitHub

https://github.com/pterodactyl/panel/security/advisories/GHSA-8r6w-3qq5-4p4r
github_pr Patch Available

Attach a scope(s) to JWTs created by the panel

Patch available: pterodactyl/panel v1.12.3 (PR #5636 merged 2026-05-23)

https://github.com/pterodactyl/panel/pull/5636
github_commit Patch Available

commit 7ffcd636310b (pterodactyl/panel)

Patch available: pterodactyl/panel v1.12.3 (contains commit 7ffcd636310b)

https://github.com/pterodactyl/panel/commit/7ffcd636310bb72b54bac3280d2a15e727feded7

Vendor Advisories for CVE-2026-54593(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 2 ecosystems)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/pterodactyl/wings—
  • every version up to 1.12.2: fixed in 1.12.2
—
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
pterodactyl/panelv0.1.0-beta ... v1.9.2 (121 versions)
  • every version up to 1.12.3: fixed in 1.12.3
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 45× 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 126 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54593?
CVE-2026-54593 is a high vulnerability published on July 28, 2026. Pterodactyl is a free, open-source game server management panel. Prior to Panel version 1.12.3 and Wings version 1.12.2, the Wings /upload/file endpoint accepted any valid panel-signed JWT that contained serveruuid, useruuid, and unique_id claims without checking the token's intended purpose;…
When was CVE-2026-54593 disclosed?
CVE-2026-54593 was first published on July 28, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54593 actively exploited?
CVE-2026-54593 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54593?
CVE-2026-54593 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54593?
A fix for CVE-2026-54593 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54593 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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