Vulnerability details

CVE-2026-105949

Red Hat streams for Apache Kafka 3

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

CVSS 3.1

8.8High

Official description

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.

CVSS scores

Score	Version	Source	Vector
8.8High	3.1	CVEProject cvelistV5 (CNA) (redhat)	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Red Hat	streams for Apache Kafka 3	All	CVEProject cvelistV5 (CNA)

References and advisories

https://access.redhat.com/security/cve/CVE-2026-105949 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2510878 issue-trackingx_refsource_REDHAT
https://github.com/cruise-control-for-kafka/cruise-control/commit/0680880be8483e87a39832de807b68d5e9918325

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Details

Published: 2026-10-20
Last updated: 2026-11-03
State: Published
Assigner (CNA): redhat

Exploit prediction (EPSS)

0.32%

Probability of exploitation in 30 days

26%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-287
Improper Authentication