CVE-2026-18572

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-02. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 2, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Aug 2, 2026
Patch available. Sources: redhat.
redhat

2509763 – (CVE-2026-18572) CVE-2026-18572 keycloak-services: keycloak-services: UMA claim token can override authorization time-policy evaluation attributes

https://bugzilla.redhat.com/show_bug.cgi?id=2509763
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-18572

Vendor Advisories for CVE-2026-18572(2)

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-openshift-rhel9/rhbk-openshift-rhel92026-09-16redhat
redhatrhbk/keycloak-rhel9-operator:26.6-202026-09-16redhat

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.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 26× in last 7d / 84× 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 140 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-18572?
CVE-2026-18572 is a medium vulnerability published on August 2, 2026. Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the…
When was CVE-2026-18572 disclosed?
CVE-2026-18572 was first published in the National Vulnerability Database on August 2, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18572 actively exploited?
CVE-2026-18572 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.0% of all scored CVEs.
What is the CVSS score of CVE-2026-18572?
CVE-2026-18572 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-18572?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18572, 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

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