CVE-2026-32253

critical · 9.8

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.

9.8

CVSS

0.3%

EPSS (exploit prob.)

22nd

EPSS percentile

2026-05-22

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-287CWE-295

Affected products

Vendor	Product	Affected versions
lizardbyte	sunshine	< 2026.516.143833

Check a specific version with /api/v1/cve/match.

References

https://github.com/LizardByte/Sunshine/releases/tag/v2026.516.143833
https://github.com/LizardByte/Sunshine/security/advisories/GHSA-ph75-mgxh-mv57
https://github.com/LizardByte/Sunshine/security/advisories/GHSA-ph75-mgxh-mv57

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-32253