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CVE-2026-4366

A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This issue may lead to information disclosure and enable attackers to map internal network infrastructure.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bdbbc7a38c9740d24f6005ae2330b469469524cd67daca4deb1d6b4dc02106ee
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 9 assertions

{"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":"26.4.12-1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat Single Sign-On 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/8

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"unaffected","product":"Red Hat build of Keycloak 26.4.12","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /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":"26.4-17","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/7

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/5

{"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":"26.4-17","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/2

Affected products and versions

9 source assertions
{"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":"26.4.12-1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat JBoss Enterprise Application Platform 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat Single Sign-On 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/8
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"rhbk/keycloak-operator-bundle","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"],"defaultStatus":"unaffected","product":"Red Hat build of Keycloak 26.4.12","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /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":"26.4-17","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/7
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"rhbk/keycloak-rhel9-operator","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/5
{"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":"26.4-17","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"RHSA-2026:19596","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:19596"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/references/0
{"name":"RHSA-2026:19597","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:19597"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/references/1
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-4366"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/references/2
{"name":"RHBZ#2448543","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2448543"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:322c203b0796e86a43fb643c72847cf2c3962f43176f0d5446dd1926ab3c6cbf · sha256:57d270b852a73035… · /containers/cna/references/3

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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