# CVE-2026-14866: IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities

> Attackers can inject rogue certificate authorities due to a publicly writeable truststore, bypassing security controls in IBM i Access Client Solutions.

- **Severity:** High 7.7 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2026
- **Updated:** 13 Aug 2026
- **Also known as:** GHSA-mc36-mm3v-489x

## What is CVE-2026-14866?

CVE-2026-14866 is a high-severity vulnerability in IBM i Access Client Solutions, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 is vulnerable to injection of rogue certificate authority due to publicly writeable truststore.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2026-14866?

It affects 1 product.


Products: Ibm I Access Client Solutions.

## How do I fix CVE-2026-14866?

No fix has been published for CVE-2026-14866 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-14866 being exploited?

There is no known exploitation of CVE-2026-14866 in the wild and no public exploit code.

## Other vulnerabilities in IBM i Access Client Solutions

- [CVE-2026-13105](https://insights.sbomify.com/CVE-2026-13105/): IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities (high 8.8)
- [CVE-2026-7770](https://insights.sbomify.com/CVE-2026-7770/): Code injection in i Access Family (high 8.8)
- [CVE-2026-13433](https://insights.sbomify.com/CVE-2026-13433/): IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities (high 8.3)
- [CVE-2026-13094](https://insights.sbomify.com/CVE-2026-13094/): IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities (high 7.8)
- [CVE-2026-16695](https://insights.sbomify.com/CVE-2026-16695/): IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14866 and fix it if it is affected.

What it is: CVE-2026-14866 is a high-severity vulnerability in IBM i Access Client Solutions, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-14866 in the wild and no public exploit code.

Affected product: IBM i Access Client Solutions. 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-2026-14866/ (Markdown: https://insights.sbomify.com/CVE-2026-14866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14866
- OSV: https://osv.dev/vulnerability/CVE-2026-14866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14866/
Summaries are generated and may contain mistakes; the official description above is the record.