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CVE-2026-9801

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol (LDAP) server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password policy response during a password authentication request, the attacker can trigger an OutOfMemoryError. This causes the Keycloak Java Virtual Machine (JVM) to terminate, leading to a denial of service
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4cb5a297b84619cd02e0c90ce0bd6b0d7c956a8c9f45da0e3ec0deb16a4a2f97
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9-operator","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6-6","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/6

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4.13-1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"unaffected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.4.13","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/3

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-19","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/1

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6.3-3","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/4

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9-operator","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-19","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/2

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6-6","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"unaffected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.6.3","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/7

Affected products and versions

8 source assertions
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9-operator","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6-6","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/6
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4.13-1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"unaffected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.4.13","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/3
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-19","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/1
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6.3-3","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/4
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9-operator","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-19","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/2
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.6-6","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"],"defaultStatus":"unaffected","packageName":"rhbk/keycloak-rhel9","product":"Red Hat build of Keycloak 26.6.3","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/affected/7

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1284","description":"Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"RHSA-2026:25097","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:25097"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/0
{"name":"RHSA-2026:25098","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:25098"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/1
{"name":"RHSA-2026:30049","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:30049"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/2
{"name":"RHSA-2026:30050","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:30050"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-9801"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/4
{"name":"RHBZ#2482473","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482473"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f065c393caf6d6ce8912114bced53c79700fbd5a551dda5e16d77d43e07f05d · sha256:9c9da52a0cca8222… · /containers/cna/references/5

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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