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CVE-2026-33558

Information exposure vulnerability has been identified in Apache Kafka. The NetworkClient component will output entire requests and responses information in the DEBUG log level in the logs. By default, the log level is set to INFO level. If the DEBUG level is enabled, the sensitive information will be exposed via the requests and responses output log. The entire lists of impacted requests and responses are: * AlterConfigsRequest * AlterUserScramCredentialsRequest * ExpireDelegation
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4797a7adb06f12b7a2025a78952c76cd90570bda71a09d3ffce7eadc0b2f34bf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Apache Kafka","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.9.1","status":"affected","version":"0.11.0","versionType":"semver"},{"status":"affected","version":"4.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/affected/0

{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.kafka:kafka-clients","product":"Apache Kafka Clients","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.9.1","status":"affected","version":"0.11.0","versionType":"semver"},{"status":"affected","version":"4.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Apache Kafka","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.9.1","status":"affected","version":"0.11.0","versionType":"semver"},{"status":"affected","version":"4.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/affected/0
{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.kafka:kafka-clients","product":"Apache Kafka Clients","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.9.1","status":"affected","version":"0.11.0","versionType":"semver"},{"status":"affected","version":"4.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/adp/1/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-533","description":"CWE-533 DEPRECATED: Information Exposure Through Server Log Files","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/04/17/3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://kafka.apache.org/cve-list"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /containers/cna/references/0
{"tags":["mailing-list"],"url":"https://lists.apache.org/thread/pz5g4ky3h0k91tfd14p0dzqjp80960kl"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:95756760be80276f8bea1a2e54870ca3cc226f956a9996d8e61cb63a6f06e970 · sha256:590f59b12257f08a… · /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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