Is CVE-2026-27134 actively exploited?

No active exploitation of CVE-2026-27134 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27134 be exploited remotely?

Yes. CVE-2026-27134 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27134?

CVE-2026-27134 has a CVSS score of 8.1 (HIGH) and an EPSS exploitation probability of 0.03%.

HOME VULNERABILITIESCVE-2026-27134

HIGH

CVE-2026-27134

CWE-287Published: February 21, 2026· Updated: Feb 25, 2026

8.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.1th

Official Description

Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In versions 0.49.0 through 0.50.0, when using a custom Cluster or Clients CA with a multistage CA chain consisting of multiple CAs, Strimzi incorrectly configures the trusted certificates for mTLS authentication on the internal as well as user-configured listeners. All CAs from the CA chain will be trusted. And users with certificates signed by any of the CAs in the chain will be able to authenticate. This issue affects only users using a custom Cluster or Clients CA with a multistage CA chain consisting of multiple CAs. It does not affect users using the Strimzi-managed Cluster and Clients CAs. It also does not affect users using custom Cluster or Clients CA with only a single CA (i.e., no CA chain with multiple CAs). This issue has been fixed in version 0.50.1. To workaround this issue, instead of providing the full CA chain as the custom CA, users can provide only the single CA that should be used.

NVD Source

Technical Analysis

CVE-2026-27134 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.