[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-UBUNTU-CVE-2026-45363":6},{"stargazers_count":4,"fetched_at":5},8,"2026-09-19T17:35:29.592Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":54,"epss":9,"epss_history":55,"metrics":56,"affected":63},"UBUNTU-CVE-2026-45363","ruby-jwt is a Ruby implementation of the RFC 7519 OAuth JSON Web Token standard. Prior to 2.10.3 and 3.2.0, JWT.decode(token, '', true, algorithm: 'HS256') accepts an attacker-forged token because OpenSSL::HMAC.digest('SHA256', '', payload) returns a valid digest under an empty key and no empty-key precondition exists in the HMAC algorithm. The same path is reached when a keyfinder block or key_finder: argument returns an empty string, nil, or an array containing nil for an unknown key, affecting HS256, HS384, and HS512 verification through JWT.decode and JWT::EncodedToken#verify_signature!. This issue is fixed in versions 2.10.3 and 3.2.0.",null,[],[],[],[14],{"_key":15},"CVE-2026-45363",[],[],[],"2026-07-14T22:16:00Z","2026-07-15T19:47:11.815380448Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24,30,34,38,42,46,50],{"url":25,"sources":26,"tags":28},"https://ubuntu.com/security/CVE-2026-45363",[27],"osv_ubuntu",[29],"REPORT",{"url":31,"sources":32,"tags":33},"https://www.cve.org/CVERecord?id=CVE-2026-45363",[27],[29],{"url":35,"sources":36,"tags":37},"https://github.com/jwt/ruby-jwt/commit/9820020869ad147b941e49d96ab8beba35532964",[27],[29],{"url":39,"sources":40,"tags":41},"https://github.com/jwt/ruby-jwt/commit/db560b769a07bd9724e77ff505011ac01872106f",[27],[29],{"url":43,"sources":44,"tags":45},"https://github.com/jwt/ruby-jwt/releases/tag/v2.10.3",[27],[29],{"url":47,"sources":48,"tags":49},"https://github.com/jwt/ruby-jwt/releases/tag/v3.2.0",[27],[29],{"url":51,"sources":52,"tags":53},"https://github.com/jwt/ruby-jwt/security/advisories/GHSA-c32j-vqhx-rx3x",[27],[29],[],[],[57],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":58,"cvss_v4_0":9},{"baseScore":59,"baseSeverity":9,"vectorString":60,"impactScore":61,"exploitabilityScore":62},9.1,"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",8.7,10,[64],{"ecosystem":65,"name":66,"vendor":67,"product":66,"cpe_part":9,"purl_type":68,"purl_namespace":67,"purl_name":66,"source":9,"versions":69},"Ubuntu","ruby-jwt","ubuntu","deb",[70,74,75,76,77,78],{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":71,"is_range":72,"range_type":73,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9}]