PT-2026-83071

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description Sieve CPU resource usage is tracked within the compiled script, enabling an attacker with valid credentials to reset accounting by repeatedly changing the active script. Additionally, compiled...

The vulnerability of the Dovecot mail server, related to deficiencies in pathname restriction, allows attackers to gain access to confidential data.

The vulnerability of the Dovecot mail server is related to deficiencies in pathname restriction. Exploiting this vulnerability can allow an attacker to gain access to confidential data...

UBUNTU-CVE-2026-33606

Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...

PT-2026-83054

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description Mail content stored by a user can be crafted to be interpreted as dsync protocol commands when an administrator executes dsync using the stream protocol, such as during migration or replication...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-52681: Excessive Platform Resource Consumption within a Loop

Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the accounting by repeatedly changing the active script. Compiled script files are also not removed when a script is deleted or renamed. The configured Sieve CPU limit can be bypassed,...

UBUNTU-CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-33606

Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...

CVE-2026-27852: Uncontrolled Resource Consumption

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

The vulnerability of the PROXY protocol parser of the Exim mail server allows a hacker to cause a service failure.

The vulnerability of the PROXY protocol parser of the Exim mail server is related to the lack of checks for verifying that the value is within the minimum range. Exploiting this vulnerability could allow a malicious actor to cause service failures...

CVE-2026-56547 An input reflection vulnerability affects HCL Traveler

The Apple profile generated for the Apple built-in Mail, Calendar and Contacts account to synchronize with HCL Traveler requires the Logon Name and Mail Address to be embedded in them. The values cannot be changed later on, so the Apple profile generation page asks for those values and reflects...

CVE-2026-56547

An input reflection vulnerability in HCL Traveler affects the Apple profile generation used to synchronize Mail, Calendar, and Contacts. The Logon Name and Mail Address values are reflected back into the generated profile without validation against the Domino directory entry for the authenticated...

CVE-2026-56547 An input reflection vulnerability affects HCL Traveler

The Apple profile generated for the Apple built-in Mail, Calendar and Contacts account to synchronize with HCL Traveler requires the Logon Name and Mail Address to be embedded in them. The values cannot be changed later on, so the Apple profile generation page asks for those values and reflects...

CVE-2026-81036

Stalwart Mail Server does not compare an OAuth redirect target against any registered destination in its default configuration. The validation routine in crates/http/src/auth/oauth/registration.rs returns success immediately when the client-authentication requirement is disabled, and that...

CVE-2026-81034

Netmaker disables certificate verification on the connection to the configured mail server. The sender in pro/email/smtp.go assigns a TLS configuration whose skip-verify field is set to true unconditionally, directly beneath a comment stating that the setting should be false in production. No...

net/mail: golang: net/mail: Denial of Service via pathological email address parsing

A flaw was found in the net/mail package within the Go standard library. A remote attacker could provide specially crafted, pathological email addresses. When these malformed email addresses are parsed by the consumePhrase function, it can lead to excessive resource consumption due to quadratic...

CVE-2026-81036 Stalwart Mail Server through 0.16.19 Authorization Code Disclosure via Unvalidated OAuth redirect_uri

Stalwart Mail Server does not compare an OAuth redirect target against any registered destination in its default configuration. The validation routine in crates/http/src/auth/oauth/registration.rs returns success immediately when the client-authentication requirement is disabled, and that...

EUVD-2026-66612

Stalwart Mail Server does not compare an OAuth redirect target against any registered destination in its default configuration. The validation routine in crates/http/src/auth/oauth/registration.rs returns success immediately when the client-authentication requirement is disabled, and that...

CVE-2026-81036

Stalwart Mail Server through 0.16.19 fails to validate OAuth redirect_uri against registered destinations in its default configuration. The root cause lies in crates/http/src/auth/oauth/registration.rs, where the validation routine returns success immediately because the client-authentication req...

CVE-2026-81036 Stalwart Mail Server through 0.16.19 Authorization Code Disclosure via Unvalidated OAuth redirect_uri

Stalwart Mail Server does not compare an OAuth redirect target against any registered destination in its default configuration. The validation routine in crates/http/src/auth/oauth/registration.rs returns success immediately when the client-authentication requirement is disabled, and that...