{"id":"CVE-2026-106036","aliases":["EUVD-2026-113121","GHSA-c5j4-p43c-gh65"],"status":"published","title":"Improper certificate validation in Szafir","description":"Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.\n\n\n\nThis issue was fixed in version 2.0 build 708.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00167,"percentile":0.06,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2026-10-29T15:08:02Z","modified":"2026-11-05T21:18:53Z","products":[{"vendor":"krajowa izba rozliczeniowa","product":"szafir"}],"references":[{"url":"https://cert.pl/posts/2026/10/CVE-2026-93570","tags":["third-party-advisory"]},{"url":"https://www.elektronicznypodpis.pl/","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106036"},{"url":"https://www.elektronicznypodpis.pl"},{"url":"https://github.com/advisories/GHSA-c5j4-p43c-gh65"}],"sources":{"cve":[{"id":"CVE-2026-106036","title":"Improper certificate validation in Szafir","description":"Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.\n\n\n\nThis issue was fixed in version 2.0 build 708.","status":"published","published":"2026-10-29T15:08:02.788Z","modified":"2026-11-05T21:18:53.88Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-05T22:55:19.167207Z"}],"euvd":[{"id":"EUVD-2026-113121","description":"Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.\n\n\n\nThis issue was fixed in version 2.0 build 708.","status":"published","published":"2026-10-29T15:08:02Z","modified":"2026-11-05T21:18:53Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-05T22:02:08.543452Z"}],"ghsa":[{"id":"GHSA-c5j4-p43c-gh65","title":"Szafir accepts any client or server certificate without performing certificate and hostname...","description":"Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.\n\n\n\nThis issue was fixed in version 2.0 build 708.","status":"published","published":"2026-10-29T18:30:50Z","modified":"2026-10-29T18:30:59Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:14:39.34849Z"}],"nvd":[{"id":"CVE-2026-106036","description":"Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.\n\n\n\nThis issue was fixed in version 2.0 build 708.","status":"published","published":"2026-10-29T16:17:47.653Z","modified":"2026-11-05T22:17:43.17Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-05T23:57:22.428307Z"}]}}