{"affected":[{"defaultStatus":"unknown","ecosystem":"pypi","packageName":"kafka-python","product":"kafka-python","source":"CNA: VulnCheck","vendor":"Dana Powers","versions":[{"lessThan":"2.3.2","status":"affected","version":"0","versionType":"git"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3.10","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1782487717","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3.12","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1781937357","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3.15","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1784351966","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel9","product":"Red Hat Quay 3.16","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1783955846","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://catalog.redhat.com/software/containers/","packageName":"quay/quay-rhel8","product":"Red Hat Quay 3.9","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1781878070","versionType":"rpm"}]}],"cveId":"CVE-2026-10143","cwes":["CWE-400","CWE-606"],"description":"kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.process_server_first_message() passes the broker-controlled SCRAM iteration count directly to hashlib.pbkdf2_hmac() without validation, blocking producer sends, consumer polls, admin operations, and heartbeats, which can cause consumer group eviction and repeated reconnect failures.","epss":{"date":"2026-11-08","percentile":0.44253,"score":0.00517},"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.5,"severity":"high","source":"ADP: redhat-SADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794146441833,"publishedAt":1781122959262,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/dpkp/kafka-python/pull/3019"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/dpkp/kafka-python/pull/3026"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/kafka-python-prior-to-dos-via-scram-iteration-count-in-scram-py"},{"source":"ADP: redhat-SADP","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-10143"},{"source":"ADP: redhat-SADP","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2487722"},{"source":"ADP: redhat-SADP","tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10143.json"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:33683"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:30076"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:42796"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:41066"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:28571"}],"remediation":[{"kind":"fix","source":"ADP: redhat-SADP","text":"RHSA-2026:33683: Red Hat Quay 3.10\n\nRHSA-2026:30076: Red Hat Quay 3.12\n\nRHSA-2026:42796: Red Hat Quay 3.15\n\nRHSA-2026:41066: Red Hat Quay 3.16\n\nRHSA-2026:28571: Red Hat Quay 3.9"},{"kind":"workaround","source":"ADP: redhat-SADP","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/dpkp/kafka-python/pull/3019"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/dpkp/kafka-python/pull/3026"}],"revision":"eb0fa356f1b7e1be2f196f6cf6766fd0b12a3f6500572cb118c24d40e4260bac","sources":[{"modifiedAt":1794146441833,"name":"CNA: VulnCheck","retrievedAt":1794147002914,"url":"https://www.cve.org/CVERecord?id=CVE-2026-10143"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794150618170,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-10143"}],"ssvc":{"assessedAt":1781183404299,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py","updatedAt":1794150618170}