CVE-2026-15572

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains unchanged. An attacker with client registration privileges can exploit this by first registering an allowed mapper type with a malicious configuration and then swapping it for a restricted, high-privilege mapper type (such as one that hardcodes administrative roles). This allows the attacker to gain full administrative access to the Keycloak realm.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
Patch available. Sources: redhat.
redhat

2499592 – (CVE-2026-15572) CVE-2026-15572 keycloak-services: keycloak-services: DCR protocol mapper type-swap policy bypass allows privilege escalation

https://bugzilla.redhat.com/show_bug.cgi?id=2499592
redhat Patch Available

CVE-2026-15572 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-15572

Vendor Advisories for CVE-2026-15572(5)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhbk/keycloak-rhel92026-08-05redhat
redhatrhbk/keycloak-rhel9-operator:26.6-112026-08-05redhat
redhatrhbk/keycloak-rhel9-operator:26.4-222026-08-05redhat

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 42× in last 7d / 98× 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.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 22:11 UTCVendor advisory
  3. 2026-08-20 22:11 UTCGHSA enrichment
  4. 2026-08-20 10:04 UTCVendor advisory
  5. 2026-08-20 10:04 UTCGHSA enrichment
  6. 2026-08-19 21:57 UTCEG score recompute
  7. 2026-08-19 21:57 UTCVendor advisory
  8. 2026-08-19 21:57 UTCGHSA enrichment
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-19 09:49 UTCVendor advisory
  11. 2026-08-19 09:49 UTCGHSA enrichment
  12. 2026-08-18 21:42 UTCEG score recompute
  13. 2026-08-18 21:42 UTCVendor advisory
  14. 2026-08-18 21:42 UTCGHSA enrichment
  15. 2026-08-18 13:48 UTCEPSS rescore
  16. 2026-08-18 09:19 UTCVendor advisory
  17. 2026-08-18 09:19 UTCGHSA enrichment
  18. 2026-08-17 21:12 UTCEG score recompute
  19. 2026-08-17 21:12 UTCVendor advisory
  20. 2026-08-17 21:12 UTCGHSA enrichment
  21. 2026-08-17 13:47 UTCEPSS rescore
  22. 2026-08-17 09:04 UTCVendor advisory
  23. 2026-08-17 09:04 UTCGHSA enrichment
  24. 2026-08-16 20:57 UTCEG score recompute
  25. 2026-08-16 20:57 UTCVendor advisory
Show 73 more
  1. 2026-08-16 20:57 UTCGHSA enrichment
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 08:50 UTCEG score recompute
  4. 2026-08-16 08:50 UTCVendor advisory
  5. 2026-08-16 08:50 UTCGHSA enrichment
  6. 2026-08-16 02:14 UTCEPSS rescore
  7. 2026-08-15 20:43 UTCVendor advisory
  8. 2026-08-15 20:43 UTCGHSA enrichment
  9. 2026-08-15 08:36 UTCEG score recompute
  10. 2026-08-15 08:36 UTCVendor advisory
  11. 2026-08-15 08:36 UTCGHSA enrichment
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 20:29 UTCVendor advisory
  14. 2026-08-14 20:29 UTCGHSA enrichment
  15. 2026-08-14 08:17 UTCEG score recompute
  16. 2026-08-14 08:17 UTCVendor advisory
  17. 2026-08-14 08:17 UTCGHSA enrichment
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-13 20:10 UTCVendor advisory
  20. 2026-08-13 20:10 UTCGHSA enrichment
  21. 2026-08-13 08:03 UTCVendor advisory
  22. 2026-08-13 08:03 UTCGHSA enrichment
  23. 2026-08-12 19:56 UTCEG score recompute
  24. 2026-08-12 19:56 UTCVendor advisory
  25. 2026-08-12 19:56 UTCGHSA enrichment
  26. 2026-08-12 13:50 UTCEPSS rescore
  27. 2026-08-12 07:49 UTCVendor advisory
  28. 2026-08-12 07:49 UTCGHSA enrichment
  29. 2026-08-11 19:42 UTCEG score recompute
  30. 2026-08-11 19:42 UTCVendor advisory
  31. 2026-08-11 19:42 UTCGHSA enrichment
  32. 2026-08-11 13:42 UTCEPSS rescore
  33. 2026-08-11 07:35 UTCEG score recompute
  34. 2026-08-11 07:35 UTCVendor advisory
  35. 2026-08-11 07:35 UTCGHSA enrichment
  36. 2026-08-11 00:00 UTCEPSS rescore
  37. 2026-08-10 19:28 UTCVendor advisory
  38. 2026-08-10 19:28 UTCGHSA enrichment
  39. 2026-08-10 16:46 UTCVendor advisory
  40. 2026-08-10 16:46 UTCGHSA enrichment
  41. 2026-08-10 04:38 UTCVendor advisory
  42. 2026-08-10 04:38 UTCGHSA enrichment
  43. 2026-08-09 16:32 UTCEG score recompute
  44. 2026-08-09 16:32 UTCVendor advisory
  45. 2026-08-09 16:32 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 04:25 UTCEG score recompute
  48. 2026-08-09 04:25 UTCVendor advisory
  49. 2026-08-09 04:25 UTCGHSA enrichment
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 16:18 UTCVendor advisory
  52. 2026-08-08 16:18 UTCGHSA enrichment
  53. 2026-08-08 04:10 UTCEG score recompute
  54. 2026-08-08 04:10 UTCVendor advisory
  55. 2026-08-08 04:10 UTCGHSA enrichment
  56. 2026-08-07 16:03 UTCVendor advisory
  57. 2026-08-07 16:03 UTCGHSA enrichment
  58. 2026-08-07 03:56 UTCVendor advisory
  59. 2026-08-07 03:56 UTCGHSA enrichment
  60. 2026-08-06 15:49 UTCEG score recompute
  61. 2026-08-06 15:49 UTCVendor advisory
  62. 2026-08-06 15:49 UTCGHSA enrichment
  63. 2026-08-06 13:46 UTCEPSS rescore
  64. 2026-08-06 07:38 UTCVendor advisory
  65. 2026-08-06 07:38 UTCGHSA enrichment
  66. 2026-08-05 19:31 UTCEG score recompute
  67. 2026-08-05 19:31 UTCGHSA enrichment
  68. 2026-08-05 19:01 UTCEG score recompute
  69. 2026-08-05 19:01 UTCGHSA enrichment
  70. 2026-08-05 18:26 UTCEG score recompute
  71. 2026-08-05 16:28 UTCEG score recompute
  72. 2026-08-05 15:26 UTCEG score recompute
  73. 2026-08-05 15:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-15572?
CVE-2026-15572 is a high vulnerability published on August 5, 2026. A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains…
When was CVE-2026-15572 disclosed?
CVE-2026-15572 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15572 actively exploited?
CVE-2026-15572 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 71.9% of all scored CVEs.
What is the CVSS score of CVE-2026-15572?
CVE-2026-15572 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-15572?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15572, 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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