Eclipse ioFog: Improper Certificate Validation (CVE-2026-115216)
Published Last modified Sources: CVE.org
What is affected, what to do
In Eclipse ioFog Operator versions 3.8.0 before 3.9.2, TLS certificate verification is disabled when the operator contacts the Controller API and when it logs in to an external OIDC issuer. An on-path attacker can present any certificate, capture the OAuth client secret (external mode) or the Controller bootstrap admin password (embedded mode with Controller HTTPS enabled), and supply the access token the operator stores for later Controller API calls. v3.8 removed Keycloak.
Update Eclipse ioFog to version 3.9.2.
- Affected
- Eclipse ioFog
lt 3.8.0..3.9.2
- Eclipse ioFog
- Fixed in
- Eclipse ioFog
3.9.2
- Eclipse ioFog
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Metrics
9.1
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: Vendor (CNA), CVSS v4
9.1
CVSS v4
Severity Critical on the scale from 0 to 10.
Source: CVE.org
—
EPSS score
No value is available for this vulnerability.
Show all metrics
- Severity
- Critical
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 75.50 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
XIEM Effective CVSS
XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.
Read in glossary- 9.1 Methodology
CVSS v4
CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.
Read in glossary- 9.1
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
CWE
CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.
Read in glossary- CWE-295
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
In Eclipse ioFog Operator versions 3.8.0 before 3.9.2, TLS certificate verification is disabled when the operator contacts the Controller API and when it logs in to an external OIDC issuer. An on-path attacker can present any certificate, capture the OAuth client secret (external mode) or the Controller bootstrap admin password (embedded mode with Controller HTTPS enabled), and supply the access token the operator stores for later Controller API calls. v3.8 removed Keycloak. The exposed credential is not a Keycloak realm-admin secret.
Source: NVD (NIST), cvelistv5
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| Eclipse Foundation | Eclipse ioFog |
|
|
Vendors and products
Weakness classes (CWE)
CWE-295Improper Certificate Validation
Base
The product does not validate, or incorrectly validates, a certificate.
Entry at MITRE CWE-295
References & sources
- github.comeclipse-iofog/iofog-operator/releases/tag/v3.9.2
- gitlab.eclipse.orgsecurity/cve-assignment/-/work_items/519
- gitlab.eclipse.orgsecurity/vulnerability-reports/-/work_items/1064
Changes to this CVE
Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).
ReceivedEclipse
CVSS V4.0: AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:N
Weakness type: CWE-295
Description added or changed
Show 7 original changes
Individual changes of this event as published by NVD Type Action Before After Description added —In Eclipse ioFog Operator versions 3.8.0 before 3.9.2, TLS certificate verification is disabled when the operator contacts the Controller API and when it logs in to an external OIDC issuer. An on-path attacker can present any certificate, capture the OAuth client secret (external mode) or the Controller bootstrap admin password (embedded mode with Controller HTTPS enabled), and supply the access token the operator stores for later Controller API calls. v3.8 removed Keycloak. The exposed credential is not a Keycloak realm-admin secret.CVSS added —AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XWeakness type (CWE) added —CWE-295Affected versions (publisher) added —New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/115xxx/CVE-2026-115216.json">CVE-2026-115216</a>Reference added —https://github.com/eclipse-iofog/iofog-operator/releases/tag/v3.9.2Reference added —https://gitlab.eclipse.org/security/cve-assignment/-/work_items/519Reference added —https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/1064Source identifier: emo@eclipse.org
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<a href="https://intel.neosec.eu/en/cve/CVE-2026-115216"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-115216.svg?lang=en" alt="CVE-2026-115216 – NEOSEC Intel" height="20"></a>