CVE-2026-107569

Unchecked input for a loop condition in Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to stop the server carrying mail. The server bounds the mail it generates in response to a message - a rule forward, reply or copy, an account forward, a Sieve...

CVE-2026-107568

Missing authorization in the Sieve notify action 6.2.22 through 6.3.6 and in the mail-rule Reply action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to send mail through the server as any address. A Sieve notify sends a notification message, and its :from tag...

EUVD-2026-104409

Unchecked input for a loop condition in Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to stop the server carrying mail. The server bounds the mail it generates in response to a message - a rule forward, reply or copy, an account forward, a Sieve...

EUVD-2026-104407

Missing authorization in the Sieve notify action 6.2.22 through 6.3.6 and in the mail-rule Reply action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to send mail through the server as any address. A Sieve notify sends a notification message, and its :from tag...

CVE-2026-107568 Missing Authorization in hMailServer

Missing authorization in the Sieve notify action 6.2.22 through 6.3.6 and in the mail-rule Reply action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to send mail through the server as any address. A Sieve notify sends a notification message, and its :from tag...

CVE-2026-107568 Missing Authorization in hMailServer

Missing authorization in the Sieve notify action 6.2.22 through 6.3.6 and in the mail-rule Reply action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to send mail through the server as any address. A Sieve notify sends a notification message, and its :from tag...

CVE-2026-107568

Progressive Robot hMailServer versions 6.2.22 through 6.3.6 are vulnerable to a missing authorization flaw in the Sieve notify action and the mail-rule Reply action. An authenticated user can craft a script or rule to send mail from any address because the server fails to verify if the specified ...

PT-2026-117456

Name of the Vulnerable Software and Affected Versions Progressive Robot hMailServer versions 6.0.0 through 6.3.6 Description Unchecked input for a loop condition allows a remote unauthenticated attacker to cause a denial of service by stopping the mail server. The server uses the...

CVE-2026-107568: Missing Authorization

Missing authorization in the Sieve notify action 6.2.22 through 6.3.6 and in the mail-rule Reply action 6.0.0 through 6.3.6 of Progressive Robot hMailServer allows an authenticated user to send mail through the server as any address. A Sieve notify sends a notification message, and its :from tag...

PT-2026-117455

Name of the Vulnerable Software and Affected Versions hMailServer versions 6.2.22 through 6.3.6 hMailServer versions 6.0.0 through 6.3.6 Description Missing authorization in the Sieve notify action and the mail-rule Reply action allows an authenticated user to send emails through the server using...

CVE-2026-50055

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address...

CVE-2026-50055

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding restrictions. By using a Sieve notify action to send copies of email content and headers to an arbitrary address, an attacker can exfiltrate emails. This vulnerability was disco...

CVE-2026-50055 Zimbra Collaboration Suite Sieve Notify Filter Action Bypasses Mail Forwarding Restriction via Variable Expansion

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address...

CVE-2026-50055 Zimbra Collaboration Suite Sieve Notify Filter Action Bypasses Mail Forwarding Restriction via Variable Expansion

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address...

EUVD-2026-95098

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address...

PT-2026-108049

Name of the Vulnerable Software and Affected Versions Zimbra Collaboration Suite affected versions not specified Description A policy-enforcement flaw allows an authenticated user to bypass disabled mail forwarding. This is achieved by utilizing a Sieve notify action—a mechanism used to trigger...

CVE-2026-50055: Incorrect Authorization

A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address...