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.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
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
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.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-111044 being exploited?
There is no known exploitation of CVE-2026-111044 in the wild and no public exploit code.
Sources
Also known as GHSA-6jvv-jqr7-m6m3.