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Authentication bypass in Cruise Control for Apache Kafka

Priority MEDIUM 40CWE-287Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

Cruise Control for Apache Kafka from 2.0.82 before 3.1.0 is affected. Security constraints cover only exact paths, so requests with an extra path segment bypass authentication while still reaching admin endpoints (CWE-287). An unauthenticated remote attacker can reach all 15 admin endpoints and affect confidentiality, integrity and availability. The sources do not report exploitation.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Cruise Control's Jetty ConstraintSecurityHandler registers security constraints on exact path specs without a catch-all wildcard constraint and without calling setDenyUncoveredHttpMethods(true). The servlet routes requests using Path.of(pathInfo).getFileName(), which strips all leading segments and trailing slashes. Requests like POST /kafkacruisecontrol/x/rebalance bypass authentication entirely but still dispatch to admin endpoints. All 15 admin endpoints become reachable without authentication. In AMQ Streams, the Strimzi operator's NetworkPolicy restricts Cruise Control port 9090 to operator pods only, reducing effective severity to Important.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th percentileScored 2026-11-07
Fix Partial Cruise Control for Apache Kafka: 3.1.0Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cruise Control for Apache Kafka2.0.82 to before 3.1.03.1.0Patch availableCNA
Red Hatstreams for Apache Kafka 2——Not affectedCNA
Red Hatstreams for Apache Kafka 3——No fix listedCNA
  • Cruise Control for Apache Kafka Vendor— Affected 2.0.82 to before 3.1.0 Fixed in 3.1.0 Patch available CNA
  • streams for Apache Kafka 2 VendorRed Hat Affected — Fixed in — Not affected CNA
  • streams for Apache Kafka 3 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 2

CPEVersionsRoleVendor
cpe:/a:redhat:amq_streams:22—Red Hat
cpe:/a:redhat:amq_streams:33—Red Hat
  • cpe:/a:redhat:amq_streams:2 Versions 2 — ·Red Hat
  • cpe:/a:redhat:amq_streams:3 Versions 3 — ·Red Hat

Remediation

Upgrade Cruise Control for Apache Kafka to version 3.1.0. The sources list no fixed version for streams for Apache Kafka 3.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA Cruise Control for Apache Kafka Fixed in 3.1.0

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
streams for Apache Kafka 3AffectedNo fix yet
Not affected: 1 product
  • streams for Apache Kafka 2

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-105949
  2. 2026-10-20 Alias added: GHSA-ggqh-85g7-w56q
  3. 2026-10-20 Affected versions changed · Red Hat
  4. 2026-10-20 CVSS score added · Red Hat
  5. 2026-10-22 Priority changed: MEDIUM → LOW
  6. 2026-10-23 CISA SSVC decision points changed
  7. 2026-10-23 Priority changed: LOW → MEDIUM
  8. 2026-10-23 1 new reference · CNA
  9. 2026-11-03 Affected versions changed · CNA
  10. 2026-11-03 Affected versions changed · Red Hat

References

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources