CVE-2026-4630

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-05-19. a secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference (IDOR) vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier (UUID) belonging to another Resource Server within the same realm, the client could bypass authorization checks. This allows the client to perform unauthorized GET, PUT, and DELETE operations on resources, leading to information disclosure and potential unauthorized modification or deletion of data.

CVSS v3
6.8
EG Score
6.8(medium)
EPSS
22.2%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 3, 2026

Advisory Details (4)

Auto-updated Jun 14, 2026
Patch available. Sources: redhat.
redhat

2450245 – (CVE-2026-4630) CVE-2026-4630 keycloak: Keycloak: Unauthorized resource access and data modification via Insecure Direct Object Reference

https://bugzilla.redhat.com/show_bug.cgi?id=2450245
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-4630
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:19597
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:19596

Vendor Advisories for CVE-2026-4630(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhbk/keycloak-rhel9-operator:26.4-172026-05-20redhat
redhatrhbk/keycloak-rhel92026-05-20redhat

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 8× in last 7d / 72× 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 138 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-4630?
CVE-2026-4630 is a medium vulnerability published on May 19, 2026. A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference (IDOR) vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier (UUID) belonging to another Resource Server within the same…
When was CVE-2026-4630 disclosed?
CVE-2026-4630 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4630 actively exploited?
CVE-2026-4630 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4630?
CVE-2026-4630 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-4630?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4630, 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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