CVE-2026-10143

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-11. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

June 10, 2026

Last Modified

August 24, 2026

Advisory Details (4)

Auto-updated Jun 11, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py | Advisories | VulnCheck

https://www.vulncheck.com/advisories/kafka-python-prior-to-dos-via-scram-iteration-count-in-scram-py
github_pr

kafka.net: Validate SASL/SCRAM iterations

Fix merged in dpkp/kafka-python PR #3026 on 2026-06-03 — awaiting tagged release

https://github.com/dpkp/kafka-python/pull/3026
github_pr

KafkaProtocol: validate network frame size; retore log-prefix; fix 0.8.2 quirk check

Fix merged in dpkp/kafka-python PR #3019 on 2026-05-30 — awaiting tagged release

https://github.com/dpkp/kafka-python/pull/3019
github_commit

commit 6e4831444f97 (dpkp/kafka-python)

Fix landed in dpkp/kafka-python commit 6e4831444f97 — awaiting tagged release

https://github.com/dpkp/kafka-python/commit/6e4831444f972d169cdd11f5c8d50333cea3f19b

Vendor Advisories for CVE-2026-10143(6)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatquay/quay-rhel8:17843519662026-07-21redhat
redhatquay/quay-rhel9:17839558462026-07-16redhat
redhatquay/quay-rhel8:17824877172026-06-30redhat
redhatquay/quay-rhel8:17819373572026-06-25redhat
redhatquay/quay-rhel8:17818780702026-06-23redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
python-kafka2.0.1-2 ... 2.0.2-9 (13 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
python-kafka2.0.2-10 ... 2.0.2-9 (10 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
python-kafka2.0.2-10, 2.0.2-11, 2.0.2-12, 2.0.2-9——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
python-kafka2.0.2-10, 2.0.2-11, 2.0.2-92.0.2-12—
PyPI(1)
PackageVulnerable rangeFixed inDependents
kafka-python0.9.0 ... 2.3.1 (68 versions)2.3.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 30× in last 7d / 152× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 315 total refreshes for this CVE.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-25 01:21 UTCEG score recompute
  3. 2026-08-25 01:21 UTCVendor advisory
  4. 2026-08-25 01:21 UTCGHSA enrichment
  5. 2026-08-24 12:21 UTCEG score recompute
  6. 2026-08-24 12:21 UTCVendor advisory
  7. 2026-08-24 12:20 UTCGHSA enrichment
  8. 2026-08-23 23:45 UTCVendor advisory
  9. 2026-08-23 23:45 UTCGHSA enrichment
  10. 2026-08-23 10:45 UTCEG score recompute
  11. 2026-08-23 10:45 UTCVendor advisory
  12. 2026-08-23 10:45 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:55 UTCEG score recompute
  15. 2026-08-21 23:55 UTCVendor advisory
  16. 2026-08-21 23:55 UTCGHSA enrichment
  17. 2026-08-21 23:48 UTCEPSS rescore
  18. 2026-08-21 10:55 UTCEG score recompute
  19. 2026-08-21 10:55 UTCVendor advisory
  20. 2026-08-21 10:55 UTCGHSA enrichment
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 21:52 UTCVendor advisory
  23. 2026-08-20 21:52 UTCGHSA enrichment
  24. 2026-08-20 08:52 UTCEG score recompute
  25. 2026-08-20 08:52 UTCVendor advisory
Show 75 more
  1. 2026-08-20 08:52 UTCGHSA enrichment
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-19 14:55 UTCEG score recompute
  4. 2026-08-19 14:55 UTCVendor advisory
  5. 2026-08-19 14:55 UTCGHSA enrichment
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 12:19 UTCEG score recompute
  8. 2026-08-17 12:19 UTCVendor advisory
  9. 2026-08-17 12:19 UTCGHSA enrichment
  10. 2026-08-17 12:12 UTCEG score recompute
  11. 2026-08-17 12:12 UTCVendor advisory
  12. 2026-08-17 12:12 UTCGHSA enrichment
  13. 2026-08-16 23:28 UTCEG score recompute
  14. 2026-08-16 23:28 UTCVendor advisory
  15. 2026-08-16 23:28 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 07:57 UTCEG score recompute
  18. 2026-08-16 07:57 UTCVendor advisory
  19. 2026-08-16 07:57 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 18:58 UTCVendor advisory
  22. 2026-08-15 18:58 UTCGHSA enrichment
  23. 2026-08-15 05:58 UTCEG score recompute
  24. 2026-08-15 05:58 UTCVendor advisory
  25. 2026-08-15 05:58 UTCGHSA enrichment
  26. 2026-08-15 01:30 UTCEPSS rescore
  27. 2026-08-14 16:57 UTCVendor advisory
  28. 2026-08-14 16:57 UTCGHSA enrichment
  29. 2026-08-14 03:46 UTCEG score recompute
  30. 2026-08-14 03:46 UTCVendor advisory
  31. 2026-08-14 03:46 UTCGHSA enrichment
  32. 2026-08-13 22:00 UTCEPSS rescore
  33. 2026-08-13 14:46 UTCVendor advisory
  34. 2026-08-13 14:46 UTCGHSA enrichment
  35. 2026-08-13 01:36 UTCEG score recompute
  36. 2026-08-13 01:36 UTCVendor advisory
  37. 2026-08-13 01:36 UTCGHSA enrichment
  38. 2026-08-12 13:50 UTCEPSS rescore
  39. 2026-08-12 12:36 UTCEG score recompute
  40. 2026-08-12 12:36 UTCVendor advisory
  41. 2026-08-12 12:36 UTCGHSA enrichment
  42. 2026-08-12 12:11 UTCVendor advisory
  43. 2026-08-12 12:11 UTCGHSA enrichment
  44. 2026-08-12 03:28 UTCVendor advisory
  45. 2026-08-12 03:28 UTCGHSA enrichment
  46. 2026-08-11 14:28 UTCEG score recompute
  47. 2026-08-11 14:28 UTCVendor advisory
  48. 2026-08-11 14:28 UTCGHSA enrichment
  49. 2026-08-11 13:42 UTCEPSS rescore
  50. 2026-08-11 01:25 UTCEG score recompute
  51. 2026-08-11 01:25 UTCVendor advisory
  52. 2026-08-11 01:25 UTCGHSA enrichment
  53. 2026-08-10 23:59 UTCEPSS rescore
  54. 2026-08-10 12:25 UTCVendor advisory
  55. 2026-08-10 12:25 UTCGHSA enrichment
  56. 2026-08-10 04:00 UTCVendor advisory
  57. 2026-08-10 04:00 UTCGHSA enrichment
  58. 2026-08-09 15:00 UTCEG score recompute
  59. 2026-08-09 15:00 UTCVendor advisory
  60. 2026-08-09 15:00 UTCGHSA enrichment
  61. 2026-08-09 13:46 UTCEPSS rescore
  62. 2026-08-09 02:01 UTCEG score recompute
  63. 2026-08-09 02:01 UTCVendor advisory
  64. 2026-08-09 02:01 UTCGHSA enrichment
  65. 2026-08-08 16:37 UTCEPSS rescore
  66. 2026-08-08 13:01 UTCVendor advisory
  67. 2026-08-08 13:01 UTCGHSA enrichment
  68. 2026-08-08 00:01 UTCEG score recompute
  69. 2026-08-08 00:01 UTCVendor advisory
  70. 2026-08-08 00:01 UTCGHSA enrichment
  71. 2026-08-07 11:01 UTCVendor advisory
  72. 2026-08-07 11:01 UTCGHSA enrichment
  73. 2026-08-06 22:01 UTCEG score recompute
  74. 2026-08-06 22:01 UTCVendor advisory
  75. 2026-08-06 22:01 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-10143?
CVE-2026-10143 is a high vulnerability published on June 10, 2026. 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.processserverfirstmessage()…
When was CVE-2026-10143 disclosed?
CVE-2026-10143 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10143 actively exploited?
CVE-2026-10143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.3% of all scored CVEs.
What is the CVSS score of CVE-2026-10143?
CVE-2026-10143 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-10143?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10143, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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