CVE-2026-15572

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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: 0.7%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.7%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 / EcosystemFix (by version range) / 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 26× in last 7d / 126× 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 301 total refreshes for this CVE.

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

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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 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 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15572?
CVE-2026-15572 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15572?
A fix for CVE-2026-15572 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15572 are linked in the Vendor Advisories panel on this page.

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