CVE-2026-26083

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-12. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

A missing authorization vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox Cloud 5.0.2 through 5.0.5, FortiSandbox PaaS 23.4 all versions, FortiSandbox PaaS 23.3 all versions, FortiSandbox PaaS 23.1 all versions, FortiSandbox PaaS 22.2 all versions, FortiSandbox PaaS 22.1 all versions, FortiSandbox PaaS 21.4 all versions, FortiSandbox PaaS 21.3 all versions, FortiSandbox PaaS 5.0.0 through 5.0.1, FortiSandbox PaaS 4.4.5 through 4.4.8 may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
50.4%
KEV
Not listed

Published

May 12, 2026

Last Modified

July 8, 2026

Advisory Details (1)

Auto-updated Jul 19, 2026
No patch confirmed yet.
generic

PSIRT | FortiGuard Labs

https://fortiguard.fortinet.com/psirt/FG-IR-26-136

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 59× 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 220 total refreshes for this CVE.

  1. 2026-07-21 15:24 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-13 22:30 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-13 06:13 UTCEPSS rescore
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-11 08:27 UTCEPSS rescore
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-08 15:15 UTCEPSS rescore
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 14:36 UTCNVD updateCVSS v3 → 9.8
Show 75 more
  1. 2026-07-08 13:20 UTCMITRE cvelistV5CVSS v3 → 9.1
  2. 2026-07-07 13:46 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-01 15:06 UTCEPSS rescore
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-06-30 23:22 UTCEPSS rescore
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 14:07 UTCEPSS rescore
  16. 2026-06-28 13:27 UTCGHSA enrichment
  17. 2026-06-28 08:24 UTCGHSA enrichment
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-28 02:17 UTCGHSA enrichment
  21. 2026-06-27 13:16 UTCGHSA enrichment
  22. 2026-06-27 08:23 UTCGHSA enrichment
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 20:52 UTCGHSA enrichment
  25. 2026-06-26 04:01 UTCGHSA enrichment
  26. 2026-06-25 21:58 UTCGHSA enrichment
  27. 2026-06-25 13:49 UTCEPSS rescore
  28. 2026-06-25 13:49 UTCEPSS rescore
  29. 2026-06-24 14:05 UTCEPSS rescore
  30. 2026-06-24 14:05 UTCEPSS rescore
  31. 2026-06-23 21:33 UTCEPSS rescore
  32. 2026-06-23 21:32 UTCEPSS rescore
  33. 2026-06-22 14:25 UTCEPSS rescore
  34. 2026-06-22 14:25 UTCEPSS rescore
  35. 2026-06-21 14:56 UTCEPSS rescore
  36. 2026-06-21 14:56 UTCEPSS rescore
  37. 2026-06-21 01:59 UTCEPSS rescore
  38. 2026-06-21 01:59 UTCEPSS rescore
  39. 2026-06-19 19:25 UTCEPSS rescore
  40. 2026-06-19 19:25 UTCEPSS rescore
  41. 2026-06-18 17:52 UTCEPSS rescore
  42. 2026-06-17 17:53 UTCEPSS rescore
  43. 2026-06-17 17:53 UTCEPSS rescore
  44. 2026-06-17 05:10 UTCGHSA enrichment
  45. 2026-06-17 00:05 UTCGHSA enrichment
  46. 2026-06-16 17:52 UTCEPSS rescore
  47. 2026-06-16 11:38 UTCGHSA enrichment
  48. 2026-06-16 06:32 UTCGHSA enrichment
  49. 2026-06-15 17:48 UTCEPSS rescore
  50. 2026-06-15 05:55 UTCGHSA enrichment
  51. 2026-06-15 02:09 UTCGHSA enrichment
  52. 2026-06-14 23:18 UTCEPSS rescore
  53. 2026-06-14 22:21 UTCGHSA enrichment
  54. 2026-06-14 18:28 UTCGHSA enrichment
  55. 2026-06-14 14:24 UTCGHSA enrichment
  56. 2026-06-14 10:27 UTCGHSA enrichment
  57. 2026-06-14 06:34 UTCGHSA enrichment
  58. 2026-06-14 00:55 UTCGHSA enrichment
  59. 2026-06-13 23:00 UTCEPSS rescore
  60. 2026-06-13 09:06 UTCGHSA enrichment
  61. 2026-06-13 05:20 UTCGHSA enrichment
  62. 2026-06-13 00:32 UTCGHSA enrichment
  63. 2026-06-12 23:12 UTCEPSS rescore
  64. 2026-06-12 23:12 UTCEPSS rescore
  65. 2026-06-12 20:45 UTCGHSA enrichment
  66. 2026-06-12 16:58 UTCGHSA enrichment
  67. 2026-06-12 11:48 UTCGHSA enrichment
  68. 2026-06-12 08:01 UTCGHSA enrichment
  69. 2026-06-12 04:15 UTCGHSA enrichment
  70. 2026-06-12 00:29 UTCGHSA enrichment
  71. 2026-06-11 20:42 UTCGHSA enrichment
  72. 2026-06-11 16:56 UTCGHSA enrichment
  73. 2026-06-11 14:00 UTCEPSS rescore
  74. 2026-06-11 12:20 UTCGHSA enrichment
  75. 2026-06-11 08:33 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-26083?
CVE-2026-26083 is a critical vulnerability published on May 12, 2026. A missing authorization vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox Cloud 5.0.2 through 5.0.5, FortiSandbox PaaS 23.4 all versions, FortiSandbox PaaS 23.3 all versions, FortiSandbox PaaS 23.1 all versions, FortiSandbox PaaS 22.2 all…
When was CVE-2026-26083 disclosed?
CVE-2026-26083 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26083 actively exploited?
CVE-2026-26083 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-26083?
CVE-2026-26083 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-26083?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26083, 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.

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