{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32253 exists.","fix":"No fix has been published for CVE-2026-32253 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-32253 is a critical authentication bypass vulnerability in LizardByte Sunshine, published on 22 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-32253 and fix it if it is affected.\n\nWhat it is: CVE-2026-32253 is a critical authentication bypass vulnerability in LizardByte Sunshine, published on 22 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32253 exists.\n\nAffected product: LizardByte Sunshine. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-32253/ (Markdown: https://insights.sbomify.com/CVE-2026-32253/index.md)","id":"CVE-2026-32253","markdown":"https://insights.sbomify.com/CVE-2026-32253/index.md","name":"CVE-2026-32253","record":{"aliases":["GHSA-ph75-mgxh-mv57"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Game streaming server","requires_auth":"none","summary":"Attackers can bypass client certificate authentication in Sunshine to access protected endpoints due to improper OpenSSL verification handling.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"sunshine","vendor":"lizardbyte"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"},{"id":"CWE-287","name":"Improper Authentication"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Sunshine: Authentication bypass via improper client certificate validation","id":"CVE-2026-32253","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Kube-router Proxy Module Blindly Trusts ExternalIPs/LoadBalancer IPs Enabling Cluster-Wide Traffic Hijacking and DNS DoS","id":"CVE-2026-32254"},"packages":[],"prev":{"headline":"Chartbrew Cross-Tenant Template Export and Secret Disclosure in `GET /team/:team_id/template/generate/:project_id`","id":"CVE-2026-32252"},"products":["Sunshine"],"published":"2026-05-22","related":[{"cvss_score":9.7,"headline":"Sunshine application-wide CSRF in the UI leads to command injection as Administrator","id":"CVE-2025-53095","kev_date_added":null,"published":"2025-07-01"},{"cvss_score":7.8,"headline":"LizardBytes Sunshine for Windows contains a DLL search-order hijacking vulnerability","id":"CVE-2025-10198","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":7.8,"headline":"A local privilege escalation vulnerability exists in LizardBytes' Sunshine for Windows","id":"CVE-2025-10199","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":7.7,"headline":"Sunshine improperly enforces pairing protocol request order","id":"CVE-2024-51738","kev_date_added":null,"published":"2025-01-20"},{"cvss_score":7.3,"headline":"Sunshine vulnerable to remote unauthenticated arbitrary file read","id":"CVE-2024-31220","kev_date_added":null,"published":"2024-04-05"},{"cvss_score":6.7,"headline":"SunshineService Has Unquoted Service Path That Allows Local SYSTEM Code Execution","id":"CVE-2025-54081","kev_date_added":null,"published":"2025-09-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-26","vendors":["LizardByte"]},"summary":"Attackers can bypass client certificate authentication in Sunshine to access protected endpoints due to improper OpenSSL verification handling.","url":"https://insights.sbomify.com/CVE-2026-32253/"}