External risk intelligence

Eclipse ioFog Operator TLS Verification Bypass Exposes Credentials.

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-115216

The vulnerability involves TLS certificate validation failures in the Eclipse ioFog Operator when communicating with a Controller API and OIDC issuer. While these components are often deployed within internal infrastructure or Kubernetes clusters, they involve network communication that could be targeted by an on-path attacker if those management paths traverse untrusted or exposed network segments.

Halo Surface Signal: 3 out of 5 — possibly public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A security flaw in the Eclipse ioFog Operator could expose sensitive credentials, including administrative passwords and OAuth client secrets. This occurs when the operator fails to properly verify TLS certificates during communication with its Controller API or external OIDC issuers, potentially allowing an attacker to intercept these secrets. The main concern is confirming relevance and exposure.

Flaw bypasses security checks for sensitive data.
Exposed credentials could grant broad system access.
Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker on the same network could intercept communication between the Eclipse ioFog Operator and its Controller API or an external OIDC issuer. By presenting a fake certificate, the attacker can trick the operator into revealing sensitive credentials. This allows the attacker to gain access to the Controller API, potentially leading to a compromise of the system.

Network access required.
TLS certificate verification bypassed.
Sensitive credentials exposed.

Live Threat

Current exploitation, exposure, and threat context

When the Eclipse ioFog Operator contacts its Controller API or an external OIDC issuer, it may fail to verify TLS certificates. This could allow an attacker on the network path to intercept credentials, potentially exposing sensitive information used for future communications.

Operator credentials and secrets at risk.
Attacker intercepts network traffic.
Unauthorized access to Controller API.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in the Eclipse ioFog Operator affects components that manage cloud-native applications and their authentication. Application owners, platform teams, and security teams are likely involved in addressing this. The first practical step is to identify all deployments of the affected operator, determine their exposure and criticality, and then coordinate remediation efforts, which may involve vendor coordination or temporary risk reduction measures if immediate patching is not feasible.

Application owners and platform teams own this.
Verify all ioFog Operator deployments.
Plan remediation based on exposure.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is the Eclipse ioFog Operator?

The Eclipse ioFog Operator is a component designed to manage cloud-native applications and orchestrate communication between an edge computing platform and its central Controller API. It acts as a bridge, handling authentication and secret management for various services, including external OIDC issuers, to ensure the secure deployment and operation of workloads across distributed systems.

Why is CVE-2026-115216 considered a weakness?

This vulnerability is classified as Improper Certificate Validation (CWE-295). It occurs because the software fails to confirm that the security certificates presented by the Controller API or OIDC services are authentic. Because it skips this vital check, the operator will trust any certificate provided to it, creating a vulnerability where it can be tricked into communicating with a malicious party.

How does an attacker trigger this vulnerability?

An attacker must be positioned on the network path between the operator and the Controller API or OIDC issuer. They trigger the flaw by presenting a fraudulent certificate during the connection attempt. If the attacker is not in a position to intercept or manipulate the network traffic between these components, the vulnerability cannot be exploited.

Is my deployment at risk according to Halo Surface Signal?

Halo Surface Signal notes that while these components are frequently kept within internal or Kubernetes-based infrastructure, they remain at risk if their management traffic travels across untrusted or exposed network segments. You should care if the paths the operator uses to reach the Controller API or OIDC issuer are accessible to unauthorized actors on your network.

What is the first step to address this CVE?

Start by identifying all instances of the Eclipse ioFog Operator currently running in your environment. Once you have a complete inventory, assess which deployments are in high-traffic or less-secure network segments. Coordinate with your platform and security teams to prioritize updates for these instances to a patched version, and plan for full remediation to close the security gap.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.