# Improper certificate validation in Eclipse Foundation Eclipse aeriOS

CVE record · `CVE-2026-82955`

- **Identifiers:** `CVE-2026-82955`
- **State:** Confirmed
- **Severity:** CVSS 9.0 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** eclipse
- **Weakness (CWE):** [CWE-295](https://cwe.mitre.org/data/definitions/295.html) · [CWE-347](https://cwe.mitre.org/data/definitions/347.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md)
- **Technologies:** [Eclipse Foundation Eclipse aeriOS](https://agentprime.io/advisories/technology/eclipse-foundation-eclipse-aerios.md)
- **Published:** 2 Sept 2026
- **Updated:** 2 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: eclipse) at 2 Sept 2026, 14:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- CVSS score 9.0: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Eclipse Foundation. Product: Eclipse aeriOS.
  - affected: `371ea2101e42aa6503161ce08bbe986e319a9c2f to before e680c69c34b82db4944517198330cc447a1e8f98` (git)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 9.0 Critical, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N`, from CNA (eclipse)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 2 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-82955](https://www.cve.org/CVERecord?id=CVE-2026-82955)
- [NVD: CVE-2026-82955](https://nvd.nist.gov/vuln/detail/CVE-2026-82955)

### References from the CNA

- <https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/818>
- <https://github.com/eclipse-aerios/api-gateway/commit/e680c69c34b82db4944517198330cc447a1e8f98>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-82955>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-82955/>. Everything for agents: <https://agentprime.io/llms.txt>.