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CVE-2026-4874

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the `client_session_host` parameter during refresh token requests. This occurs when a Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host` placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to inf
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b4c1b9ceeeb0be3f0a42a298adf7f847109cf3842c9f9e5269055bccb331171
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 13 assertions

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/5

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/3

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/7

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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-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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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-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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/4

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/9

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/8

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/12

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/10

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/11

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/0

{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/1

Affected products and versions

13 source assertions
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/5
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/3
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/7
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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-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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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-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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/4
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/9
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/8
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/12
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/10
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/11
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/0
{"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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-4874"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /containers/cna/references/4
{"name":"RHBZ#2451611","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451611"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a5f7bc6307befb10db85423597526ea208b1d4c2221f30067fc08e61aa0977a6 · sha256:b1b24bdf066c81fc… · /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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