CVE-2026-108860 — BotSharp through 5.2.0 Authentication Bypass via Hard-Coded JWT Signing Key
BotSharp through 5.2.0 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge bearer tokens using the hard-coded Jwt:Key in WebSta…
Published: 2026-10-11 · CVSS: 9.3 · CVSS 4.0
BotSharp through 5.2.0 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge bearer tokens using the hard-coded Jwt:Key in WebStarter appsettings.json. Attackers can sign tokens with the committed HMAC secret and fixed botsharp issuer and audience to impersonate any known user, including administrators, on Authorize-protected API routes.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7