CVE-2026-32253CRITICAL 9.8EPSS p24.0%

CVE-2026-32253CVE-2026-32253

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.32% probability of exploitation · percentile 24.0% · 2026-06-19T12:03:05Z
Published2026-05-22
Last modified2026-05-26

Underlying weaknesses· 2

CWE-287CWE-295

References

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

2

TypeTargetConfidenceTier
WeaknessImproper Authenticationcwe-2870%live
WeaknessImproper Certificate Validationcwe-2950%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-53095
CVE
CVE-2025-9293
CVE
CVE-2026-20997
CVE
CVE-2026-42765
CVE
CVE-2026-3832
CVE
CVE-2025-24924
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.