CVE-2026-10143
גבוהה 7.5
תיאור (מקור, אנגלית)
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.
מדדים
- CVSS 3.1
-
7.5 (HIGH)
מקור הציון: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 4.0
-
8.7 (HIGH)
מקור הציון: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — סבירות ניצול
- 1% (אחוזון 000) נכון ל-10/8/2026
- CWE
- CWE-400, CWE-606
מוצרים מושפעים
dpkp: kafka-python
קישורים
- https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333ce… Patch
- https://github.com/dpkp/kafka-python/pull/3019 Issue TrackingPatch
- https://github.com/dpkp/kafka-python/pull/3026 Issue TrackingPatch
- https://www.vulncheck.com/advisories/kafka-python-prior-to-dos-via-scram-itera… PatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2026:28571
- https://access.redhat.com/errata/RHSA-2026:30076
- https://access.redhat.com/errata/RHSA-2026:33683
- https://access.redhat.com/errata/RHSA-2026:41066
- https://access.redhat.com/errata/RHSA-2026:42796
- https://access.redhat.com/security/cve/CVE-2026-10143