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Fencer Intel
high 8.8

CVE-2026-105949 json

Cruise-control: streams for apache kafka cruise control: authentication bypass via extra path segment allows unauthenticated access to all admin endpoints

published 20d ago modified 6d ago also EUVD-2026-104965

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

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.

Patch / fix

  • cruise-control-for-kafka Cruise Control for Apache Kafka 3.1.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-105949 updated cvss 8.8

cruise-control: Streams for Apache Kafka Cruise Control: authentication bypass via extra path segment allows unauthenticated access to all admin endpoints

  • Red Hat streams for Apache Kafka 3 cruise-control 2.5.143.redhat-00012
    affected: workaround, no fix available
  • Red Hat streams for Apache Kafka 2 cruise-control 2.5.143.redhat-00012
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18d ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • cruise-control-for-kafka Cruise Control for Apache Kafka
  • Red Hat streams for Apache Kafka 2
  • Red Hat streams for Apache Kafka 3

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.