# CVE-2026-84736: Security feature bypass in Eclipse aeriOS

> Attackers can intercept sensitive data by exploiting disabled TLS validation in Eclipse aeriOS Federator, requiring configuration updates to enforce certificate verification.

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Sep 2026
- **Updated:** 3 Sep 2026
- **Also known as:** GHSA-hxq8-hcgp-qp7j

## What is CVE-2026-84736?

CVE-2026-84736 is a high-severity vulnerability in Eclipse aeriOS, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In the current development version of Eclipse aeriOS, for which no official release has yet been published, the Federator component disables TLS certificate validation for outbound HTTPS connections by default. When the TLS_CERTIFICATE_VALIDATION environment variable is unset or set to false, the component configures its HTTP transport to skip TLS certificate verification.

As a result, an attacker able to intercept network communications between the Federator and external services could impersonate those services and intercept sensitive information transmitted over HTTPS, including OAuth client credentials and bearer tokens.

The issue has been addressed by enabling TLS certificate validation by default. The TLS_CERTIFICATE_VALIDATION environment variable is now set to true in the default configuration provided by the Helm chart and Docker Compose deployment.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2026-84736?


## How do I fix CVE-2026-84736?

No fix has been published for CVE-2026-84736 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-84736 being exploited?

There is no known exploitation of CVE-2026-84736 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84736 and fix it if it is affected.

What it is: CVE-2026-84736 is a high-severity vulnerability in Eclipse aeriOS, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-84736 in the wild and no public exploit code.

Affected product: Eclipse aeriOS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-84736/ (Markdown: https://insights.sbomify.com/CVE-2026-84736/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84736
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84736
- OSV: https://osv.dev/vulnerability/CVE-2026-84736

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84736/
Summaries are generated and may contain mistakes; the official description above is the record.