[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2026-73253":6},{"stargazers_count":4,"fetched_at":5},7,"2026-08-20T15:42:44.608Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":27,"aliases":28,"duplicate_of":9,"upstream":29,"downstream":30,"duplicates":31,"related":32,"reserved_at":9,"published_at":33,"modified_at":34,"state":35,"summary":36,"references_raw":43,"kevs":63,"epss":9,"epss_history":64,"metrics":65,"affected":72},"CVE-2026-73253","Mongoose is an embedded web server and network library. Prior to version 7.22, an on-path network attacker with a wildcard certificate for a parent domain can impersonate deeper subdomains to a client using the built-in TLS stack. The mg_tls_verify_cert_san() and mg_tls_verify_cert_cn() functions in src/tls_builtin.c call mg_match(), whose wildcard can cross DNS label boundaries, so a pattern such as *.example.com can match foo.bar.example.com. The resulting hostname verification bypass permits interception and modification of TLS traffic. This issue is fixed in version 7.22.",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":9,"capec":18},"CWE-295","Improper Certificate Validation","The product does not validate, or incorrectly validates, a certificate.","weakness","Draft","Base",[19,23],{"id":20,"name":21,"techniques":22},"CAPEC-459","Creating a Rogue Certification Authority Certificate",[],{"id":24,"name":25,"techniques":26},"CAPEC-475","Signature Spoofing by Improper Validation",[],[],[],[],[],[],[],"2026-08-20T17:41:02.495Z","2026-08-20T18:36:17.262Z","Received",{"cisa_kev":37,"cisa_ransomware":37,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":38,"severity_score":39,"severity_version":40,"severity_source":41,"severity_vector":42,"severity_status":35},false,"critical",9.1,"v4.0","cve.org","CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",[44,50,55,59],{"url":45,"sources":46,"tags":48},"https://github.com/cesanta/mongoose/security/advisories/GHSA-jp6g-796f-39vp",[41,47],"nvd",[49],"X Refsource CONFIRM",{"url":51,"sources":52,"tags":53},"https://github.com/cesanta/mongoose/pull/3611",[41,47],[54],"X Refsource MISC",{"url":56,"sources":57,"tags":58},"https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71",[41,47],[54],{"url":60,"sources":61,"tags":62},"https://github.com/cesanta/mongoose/releases/tag/7.22",[41,47],[54],[],[],[66,69],{"source":41,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":9,"cvss_v4_0":67},{"baseScore":39,"baseSeverity":68,"vectorString":42,"impactScore":9,"exploitabilityScore":9},"CRITICAL",{"source":47,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":9,"cvss_v4_0":70},{"baseScore":39,"baseSeverity":68,"vectorString":71,"impactScore":9,"exploitabilityScore":9},"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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",[73],{"ecosystem":9,"name":74,"vendor":75,"product":74,"cpe_part":76,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":77},"mongoose","cesanta","a",[78],{"version":79,"is_range":80,"range_type":41,"version_start":9,"version_start_type":9,"version_end":81,"version_end_type":82,"fixed_in":9},"\u003C 7.22",true,"7.22","excluding"]