EUVD-2026-104408

Missing authorization in the Sieve editheader action 6.2.22 through 6.3.6 and in the mail-rule Set header value action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to make the server send mail as any address, DKIM-signed where the address is at a domain the...

CVE-2026-107566 Missing Authorization in hMailServer

Missing authorization in the Sieve editheader action 6.2.22 through 6.3.6 and in the mail-rule Set header value action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to make the server send mail as any address, DKIM-signed where the address is at a domain the...

CVE-2026-107566

Progressive Robot hMailServer versions 6.2.22 through 6.3.6 are vulnerable to a missing authorization flaw in the Sieve editheader action and the mail-rule Set header value action (v6.0.0 through 6.3.6). This allows an authenticated user to manipulate headers such as From , Sender , and DKIM-Sign...

PT-2026-117453

Missing authorization in the Sieve editheader action 6.2.22 through 6.3.6 and in the mail-rule Set header value action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to make the server send mail as any address, DKIM-signed where the address is at a domain the...