CVE-2026-9800

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

June 25, 2026

Last Modified

September 14, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Patch available. Sources: redhat.
redhat

2482472 – (CVE-2026-9800) CVE-2026-9800 keycloak: Keycloak Policy Enforcer: Authorization bypass via incorrect URI comparison

https://bugzilla.redhat.com/show_bug.cgi?id=2482472
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-9800

Vendor Advisories for CVE-2026-9800(7)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhbk/keycloak-rhel92026-08-05redhat
redhatrhbk/keycloak-rhel9-operator:26.4-222026-08-05redhat
redhatrhbk/keycloak-rhel9-operator:26.6-82026-06-25redhat
redhatrhbk/keycloak-rhel9-operator:26.4-192026-06-25redhat

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 30× in last 7d / 76× 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 353 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-9800?
CVE-2026-9800 is a high vulnerability published on June 25, 2026. A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path…
When was CVE-2026-9800 disclosed?
CVE-2026-9800 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9800 actively exploited?
CVE-2026-9800 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.3% of all scored CVEs.
What is the CVSS score of CVE-2026-9800?
CVE-2026-9800 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-9800?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9800, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-9800

Explore →

Is Your Infrastructure Affected by CVE-2026-9800?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs