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CVE-2026-17107

A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9c460c72bb4063ca694c07302e485ae5d9114df690af01c12a6eff8aa3480258
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.10::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.1","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/1

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.17::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.17","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784926298","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/3

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.11::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.11","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784925025","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/2

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.8::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/5

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.10::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.1","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/0

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.6::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1783985960","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/4

{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.9::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1783278220","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/6

Affected products and versions

7 source assertions
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.10::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.1","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/1
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.17::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.17","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784926298","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/3
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.11::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.11","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784925025","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/2
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.8::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/5
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.10::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.1","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784342329","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/0
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.6::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.6","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1783985960","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/4
{"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:multicluster_engine:2.9::el9"],"defaultStatus":"affected","packageName":"multicluster-engine/cluster-proxy-rhel9","product":"multicluster engine for Kubernetes 2.9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1783278220","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/affected/6

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-441","description":"Unintended Proxy or Intermediary ('Confused Deputy')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/problemTypes/0/descriptions/0

Source references

9 source assertions
{"name":"RHSA-2026:46885","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:46885"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/0
{"name":"RHSA-2026:47388","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47388"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/1
{"name":"RHSA-2026:47735","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47735"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/2
{"name":"RHSA-2026:47949","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47949"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/3
{"name":"RHSA-2026:47953","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47953"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/4
{"name":"RHSA-2026:47974","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47974"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/5
{"name":"RHSA-2026:48284","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:48284"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/6
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-17107"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/7
{"name":"RHBZ#2506771","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506771"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b1cb3073a9e36b2a14311f66a40e1d417c4633c12bcd8ae6bfe9ce2c38736ecb · sha256:9831eb2d63a4f8aa… · /containers/cna/references/8

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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