CVE-2026-32253— Sunshine: Authentication bypass via improper client certificate validation
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| LizardByte | Sunshine | < 2026.516.143833 | affected |
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I. Basic Information for CVE-2026-32253
Vulnerability Information
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Vulnerability Title
Sunshine: Authentication bypass via improper client certificate validation
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sunshine is a self-hosted game stream host for Moonlight. In versions prior to 2026.516.143833, the client-certificate authentication can be bypassed because of how OpenSSL verification results are handled. In src/crypto.cpp, the custom verify callback treats X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY, X509_V_ERR_CERT_NOT_YET_VALID, and X509_V_ERR_CERT_HAS_EXPIRED as success. This can allow an untrusted certificate to pass authentication and access protected HTTPS endpoints. This issue has been fixed in version 2026.516.143833.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| LizardByte | Sunshine | < 2026.516.143833 | - |
II. Public POCs for CVE-2026-32253
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7591 chars
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III. Intelligence Information for CVE-2026-32253
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Vendor · 1Advisory · 1
- Release v2026.516.143833 · LizardByte/Sunshine · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-32253
IV. Related Vulnerabilities
Same product: Sunshine
- CVE-2025-54081
SunshineService Has Unquoted Service Path That Allows Local - CVE-2025-53095
Sunshine application-wide CSRF in the UI leads to command in - CVE-2025-53096
Sunshine clickjacking in the UI leads to unauthorized action - CVE-2024-51738
Sunshine improperly enforces pairing protocol request order - CVE-2024-45407
Sunshine has incorrect state management during pairing proce
Same vendor: LizardByte
- CVE-2025-54081
SunshineService Has Unquoted Service Path That Allows Local - CVE-2025-10199
A local privilege escalation vulnerability exists in LizardB - CVE-2025-10198
LizardBytes Sunshine for Windows contains a DLL search-order - CVE-2025-53095
Sunshine application-wide CSRF in the UI leads to command in - CVE-2025-53096
Sunshine clickjacking in the UI leads to unauthorized action
Same weakness: CWE-287
- CVE-2026-47280
Azure Resource Manager Elevation of Privilege Vulnerability - CVE-2026-41076
RT: LDAP authentication bypass via empty password - CVE-2026-39969
TypeBot: WhatsApp Webhook Endpoint Missing Signature Verific - CVE-2026-44058
Authentication bypass via admin auth user - CVE-2026-40165
authentik: SAML NameID XML Comment Injection Enables Authent
V. Comments for CVE-2026-32253
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