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

Quick assessment

Affected
LizardByte Sunshine
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sunshine 是 Moonlight 的自托管游戏串流主机。在版本 2026.329.165800 至 2026.906.222525 期间，Sunshine 会接受任何能够链接到已存储的已配对客户端证书的客户端证书，但并未要求提交的证书必须与当前启用的已配对身份完全一致。此外，证书文本在比较时也未对等效的 PEM 编码进行规范化处理。因此，一个此前已配对且仍保留其私钥的客户端，可以提交由其已配对证书派生的替代证书，从而绕过“禁用”控制。等效的 PEM 编码还可能导致客户端身份处理不一致。从未配对过的客户端无法

CVSS 7.6 · High EPSS 0.16% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
LizardByte Sunshine >= 2026.329.165800, < 2026.906.222525 affected
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I. Basic Information for CVE-2026-111044

Vulnerability Information
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Vulnerability Title
Disabled Sunshine clients can bypass revocation with a derived client certificate
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LizardByte Sunshine >= 2026.329.165800, < 2026.906.222525 -

II. Public POCs for CVE-2026-111044

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III. Intelligence Information for CVE-2026-111044

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Vendor Advisories for CVE-2026-111044 (1)

Vendor Pages for CVE-2026-111044 (1)

IV. Related Vulnerabilities

Same product: Sunshine
Same vendor: LizardByte
Same weakness: CWE-863

V. Comments for CVE-2026-111044

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