CVE-2026-9093

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects WarningInfo.NotInAudience. This allows assertions issued for other service providers to be accepted by Casdoor.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
28.7%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 2, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
No patch confirmed yet. Sources: cert.
cert

VU#780781 - Casdoor contains multiple authentication bypass and access management vulnerabilities

https://kb.cert.org/vuls/id/780781

Vendor Advisories for CVE-2026-9093(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
gogithub.com/casdoor/casdoor—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 15× in last 7d / 122× 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 283 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-9093?
CVE-2026-9093 is a critical vulnerability published on May 28, 2026. In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects…
When was CVE-2026-9093 disclosed?
CVE-2026-9093 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9093 actively exploited?
CVE-2026-9093 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9093?
CVE-2026-9093 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9093?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9093, 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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