# CVE-2026-7770: Code injection in i Access Family

> Attackers can execute arbitrary code on systems running IBM i Access Client Solutions when it is configured to listen for IBM i Navigator requests.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2026
- **Updated:** 2 Jun 2026
- **Also known as:** GHSA-rm3f-295w-c3mc

## What is CVE-2026-7770?

CVE-2026-7770 is a high-severity code injection vulnerability in IBM i Access Family, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM i Access Family 1.1.5.0 through 1.1.9.12 IBM i Access Client Solutions (ACS) is vulnerable to remote code execution when configured to listen for requests from IBM i Navigator.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-7770?

It affects 1 product.


Products: Ibm I Access Client Solutions.

## How do I fix CVE-2026-7770?

No fix has been published for CVE-2026-7770 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-7770 being exploited?

There is no known exploitation of CVE-2026-7770 in the wild and no public exploit code.

## Other vulnerabilities in IBM i Access Family

- [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-2026-13433](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)
- [CVE-2026-14866](https://insights.sbomify.com/CVE-2026-14866/): IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-7770 and fix it if it is affected.

What it is: CVE-2026-7770 is a high-severity code injection vulnerability in IBM i Access Family, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-7770 in the wild and no public exploit code.

Affected product: IBM i Access Family. 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-2026-7770/ (Markdown: https://insights.sbomify.com/CVE-2026-7770/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-7770
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7770
- OSV: https://osv.dev/vulnerability/CVE-2026-7770

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-7770/
Summaries are generated and may contain mistakes; the official description above is the record.