Source: python-kafka X-Debbugs-CC: [email protected] Severity: important Tags: security
Hi, The following vulnerability was published for python-kafka. CVE-2026-10143[0]: | 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. https://bugzilla.redhat.com/show_bug.cgi?id=2487722 If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-10143 https://www.cve.org/CVERecord?id=CVE-2026-10143 Please adjust the affected versions in the BTS as needed.
