CVE-2026-105311

HIGH
MEDIUM Priority: 0.02 BB Relevance: 65/100
Published: 2026-10-20 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: High
I: None
A: None

Description

The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant with permission to create a Console custom resource can set spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The operator, running with cluster-wide Secrets RBAC, reads the victim-namespace KafkaUser Secret (SASL credentials or TLS private keys) and writes the plaintext material into a Secret in the attacker's namespace. No same-namespace check or allowlist exists anywhere in the code path.

Affected Software (2)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2510875
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.30%
Raw Score 0.002960
Percentile 22.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00296
2026-11-12
0.00296
2026-11-10
0.00296
2026-11-09
0.00296
2026-11-08
0.00296
2026-11-07
0.00296
2026-11-06
0.00296
2026-11-05
0.00296
2026-11-04
0.00296
2026-11-03
0.00296

Intelligence Sources

mitre ref →
nvd ref →