# CVE-2026-111044: Disabled Sunshine clients can bypass revocation with a derived client certificate

> Disabled Sunshine clients can bypass revocation controls by presenting derived certificates, allowing unauthorized access to the game streaming service.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L`)
- **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:** 16 Oct 2026
- **Updated:** 28 Oct 2026
- **Also known as:** GHSA-6jvv-jqr7-m6m3

## What is CVE-2026-111044?

CVE-2026-111044 is a high-severity authentication bypass vulnerability in LizardByte Sunshine, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Sunshine is a self-hosted game stream host for Moonlight. From 2026.329.165800 until 2026.906.222525, Sunshine accepted any client certificate that chained to a stored paired-client certificate, but it did not require the presented certificate to be the exact enabled paired identity. Certificate text was also compared without canonicalizing equivalent PEM encodings. A previously paired client that retains its private key can present an alternate certificate derived from its paired certificate and bypass the Disable control. Equivalent PEM encodings could also cause inconsistent client identity handling. A client that was never paired cannot use this issue, and removing the paired client removes its trust relationship. This issue is fixed in version 2026.906.222525.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-111044?


## How do I fix CVE-2026-111044?

No fix has been published for CVE-2026-111044 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111044 being exploited?

There is no known exploitation of CVE-2026-111044 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111044 and fix it if it is affected.

What it is: CVE-2026-111044 is a high-severity authentication bypass vulnerability in LizardByte Sunshine, published on 16 Oct 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-2026-111044 in the wild and no public exploit code.

Affected product: LizardByte Sunshine. 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-2026-111044/ (Markdown: https://insights.sbomify.com/CVE-2026-111044/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111044
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111044
- OSV: https://osv.dev/vulnerability/CVE-2026-111044

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111044/
Summaries are generated and may contain mistakes; the official description above is the record.