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CVE-2026-0707

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as tabs) as separators and tolerates case variations that deviate from RFC 6750 specifications.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1d0c1f643a38037e07877adf8508ab71dc87a5e44916fbf67fb6b79ceab0923f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"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 26.4.10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /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-operator","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-12","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/affected/2

{"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":"26.4.10-1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /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":"26.4-12","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/affected/1

Affected products and versions

4 source assertions
{"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 26.4.10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /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-operator","product":"Red Hat build of Keycloak 26.4","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"26.4-12","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/affected/2
{"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":"26.4.10-1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /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":"26.4-12","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-551","description":"Incorrect Behavior Order: Authorization Before Parsing and Canonicalization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"RHSA-2026:3947","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:3947"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/references/0
{"name":"RHSA-2026:3948","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:3948"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/references/1
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-0707"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/references/2
{"name":"RHBZ#2427768","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2427768"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/references/3
{"url":"https://github.com/keycloak/keycloak/issues/49433"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e0d45e8103177b00e2b2137dbd41fe2fbb2f44de3101944ac797d088c2931e94 · sha256:e67b994ebaa39985… · /containers/cna/references/4

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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