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CVE-2026-16089

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b6be71d243370f9ecae82ea41ccbeb1f5f8b9d36e1bd99e1f5aab6a33c248da3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 6 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/1

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/5

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/2

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_data_grid:8"],"defaultStatus":"unaffected","packageName":"keycloak-services","product":"Red Hat Data Grid 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/3

Affected products and versions

6 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"rhbk-keycloak-rhel9/rhbk-keycloak-rhel9","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"keycloak-services","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"],"defaultStatus":"unaffected","packageName":"keycloak-services","product":"Red Hat Single Sign-On 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:build_keycloak:"],"defaultStatus":"affected","packageName":"rhbk-openshift-rhel9/rhbk-openshift-rhel9","product":"Red Hat Build of Keycloak","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","cpes":["cpe:/a:redhat:jbosseapxp"],"defaultStatus":"unaffected","packageName":"keycloak-services","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:jboss_data_grid:8"],"defaultStatus":"unaffected","packageName":"keycloak-services","product":"Red Hat Data Grid 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/affected/3

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-384","description":"CWE-384 Session Fixation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-16089"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/references/0
{"name":"RHBZ#2501724","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2501724"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:81a11f3b0290a0609dae929bf99148896da39f14cd437010dede6f9a029e1b08 · sha256:4e14b64f97743aac… · /containers/cna/references/1

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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