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CVE-2026-27134

Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In versions 0.49.0 through 0.50.0, when using a custom Cluster or Clients CA with a multistage CA chain consisting of multiple CAs, Strimzi incorrectly configures the trusted certificates for mTLS authentication on the internal as well as user-configured listeners. All CAs from the CA chain will be trusted. And users with certificates signed by any of the CAs in the chain will
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cf4fe6be64551b76d6e55931be6ee265a5a81517c3c4121843537b219b110573
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 5 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"unaffected","packageName":"io.strimzi-strimzi-drain-cleaner","product":"streams for Apache Kafka 3","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"affected","packageName":"io.strimzi-strimzi","product":"streams for Apache Kafka 3","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:2"],"defaultStatus":"unaffected","packageName":"io.strimzi-strimzi","product":"streams for Apache Kafka 2","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:2"],"defaultStatus":"affected","packageName":"io.strimzi-strimzi-drain-cleaner","product":"streams for Apache Kafka 2","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/1

{"product":"strimzi-kafka-operator","vendor":"strimzi","versions":[{"status":"affected","version":">= 0.49.0, < 0.50.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/affected/0
cwe · 4 assertions

{"cweId":"CWE-296","description":"CWE-296: Improper Following of a Certificate's Chain of Trust","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-295","description":"Improper Certificate Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

5 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"unaffected","packageName":"io.strimzi-strimzi-drain-cleaner","product":"streams for Apache Kafka 3","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:3"],"defaultStatus":"affected","packageName":"io.strimzi-strimzi","product":"streams for Apache Kafka 3","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:2"],"defaultStatus":"unaffected","packageName":"io.strimzi-strimzi","product":"streams for Apache Kafka 2","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:amq_streams:2"],"defaultStatus":"affected","packageName":"io.strimzi-strimzi-drain-cleaner","product":"streams for Apache Kafka 2","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/affected/1
{"product":"strimzi-kafka-operator","vendor":"strimzi","versions":[{"status":"affected","version":">= 0.49.0, < 0.50.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

4 source assertions
{"cweId":"CWE-296","description":"CWE-296: Improper Following of a Certificate's Chain of Trust","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-295","description":"Improper Certificate Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-27134"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/references/0
{"name":"RHBZ#2441564","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2441564"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/references/1
{"name":"https://github.com/strimzi/strimzi-kafka-operator/releases/tag/0.50.1","tags":["x_refsource_MISC"],"url":"https://github.com/strimzi/strimzi-kafka-operator/releases/tag/0.50.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/references/1
{"name":"https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-2qwx-rq6j-8r6j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-2qwx-rq6j-8r6j"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27134.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8f5fe7eb219242f0be6dc2aef9ee30769c0bd731131aa0d072bd5b25e1acc80d · sha256:5406655bd437c2b0… · /containers/adp/1/references/2

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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