CVE-2026-9097

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
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.

Casdoor versions 2.362.0 and earlier do not verify that a JWT used for token exchange is still active. The GetTokenExchangeToken() function in object/token_oauth.go validates the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been revoked or invalidated. Because the revocation check is entirely absent, administrators are unable to terminate active sessions or revoke compromised tokens.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
33.1%
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-2026-9097(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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 69× 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 174 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-9097?
CVE-2026-9097 is a critical vulnerability published on May 28, 2026. Casdoor versions 2.362.0 and earlier do not verify that a JWT used for token exchange is still active. The GetTokenExchangeToken() function in object/token_oauth.go validates the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been…
When was CVE-2026-9097 disclosed?
CVE-2026-9097 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-2026-9097 actively exploited?
CVE-2026-9097 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9097?
CVE-2026-9097 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9097?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9097, 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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