{"id":"CVE-2021-34532","aliases":["BIT-aspnet-core-2021-34532","GHSA-q7cg-43mg-qp69"],"url":"https://o3.security/vulnerability/CVE-2021-34532","summary":"ASP.NET Core Information Disclosure Vulnerability","details":"ASP.NET Core and Visual Studio Information Disclosure Vulnerability","published":"2021-08-12T18:15:09.337Z","modified":"2026-08-12T04:00:33.125324986Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"Microsoft.AspNetCore.Authentication.JwtBearer","fixedVersion":"2.1.29"},{"ecosystem":"NuGet","name":"Microsoft.AspNetCore.Authentication.JwtBearer","fixedVersion":"3.1.18"},{"ecosystem":"NuGet","name":"Microsoft.AspNetCore.Authentication.JwtBearer","fixedVersion":"5.0.9"}],"fix":null,"references":[{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34532"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34532"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T04:00:33.125324986Z"}}