CVE-2026-84697 Mailpit SSRF Deny List Bypass via Azure Metadata and IPv6 Prefix

Mailpit's IsInternalIP deny list function fails to block the Azure WireServer address 168.63.129.16 and the RFC 2765/6145 IPv4-translated IPv6 prefix, allowing server-side request forgery to internal destinations. Attackers can supply hostnames resolving to these addresses in message content to...

CVE-2026-84697: Server-Side Request Forgery (SSRF)

Mailpit's IsInternalIP deny list function fails to block the Azure WireServer address 168.63.129.16 and the RFC 2765/6145 IPv4-translated IPv6 prefix, allowing server-side request forgery to internal destinations. Attackers can supply hostnames resolving to these addresses in message content to...

SUSE CVE-2026-55187

Mailpit is an email testing tool and API for developers. Prior to 1.30.2, the remediation shipped for CVE-2026-27808 is incomplete because the tools.IsInternalIP deny-list in internal/tools/net.go relies on Go's standard library classification helpers and does not block IPv6 transition mechanisms...

CVE-2026-55187

Mailpit is an email testing tool and API for developers. Prior to 1.30.2, the remediation shipped for CVE-2026-27808 is incomplete because the tools.IsInternalIP deny-list in internal/tools/net.go relies on Go's standard library classification helpers and does not block IPv6 transition mechanisms...

EUVD-2026-43052

Mailpit is an email testing tool and API for developers. Prior to 1.30.2, the remediation shipped for CVE-2026-27808 is incomplete because the tools.IsInternalIP deny-list in internal/tools/net.go relies on Go's standard library classification helpers and does not block IPv6 transition mechanisms...

CVE-2026-55187

Mailpit is an email testing tool and API for developers. Prior to 1.30.2, the remediation shipped for CVE-2026-27808 is incomplete because the tools.IsInternalIP deny-list in internal/tools/net.go relies on Go's standard library classification helpers and does not block IPv6 transition mechanisms...

GO-2026-5688 Mailpit: Incomplete SSRF protection in Link Check API via IPv6 transition mechanisms in github.com/axllent/mailpit

Mailpit: Incomplete SSRF protection in Link Check API via IPv6 transition mechanisms in github.com/axllent/mailpit...

mail/mailpit -- Incomplete SSRF protection in Link Check API via uncovered IPv6 forms

Mailpit authorreports: The tools.IsInternalIP deny-list relies on Go's stdlib classification helpers IsLoopback, IsPrivate, IsLinkLocalUnicast, IsLinkLocalMulticast, IsUnspecified, IsMulticast plus an inline CGNAT range, but those helpers do not match two classes of IPv6 address that should be...

FreeBSD : mail/mailpit -- Incomplete SSRF protection in Link Check API via uncovered IPv6 forms (44afeb08-6a18-11f1-9647-10ffe07f9334)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 44afeb08-6a18-11f1-9647-10ffe07f9334 advisory. Mailpit authorreports: The tools.IsInternalIP deny-list relies on Go's stdlib classification helpers...

SUSE CVE-2026-27808

Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side Request Forgery SSRF. The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering...

FreeBSD : mail/mailpit -- Server-Side Request Forgery (SSRF) via Link Check API (fe6209a3-126c-11f1-8a62-0897988a1c07)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the fe6209a3-126c-11f1-8a62-0897988a1c07 advisory. Mailpit author reports: The Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side...

CVE-2026-27808

Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side Request Forgery SSRF. The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering...

GO-2026-4558 Mailpit is Vulnerable to Server-Side Request Forgery (SSRF) via Link Check API in github.com/axllent/mailpit

Mailpit is Vulnerable to Server-Side Request Forgery SSRF via Link Check API in github.com/axllent/mailpit...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the doHead function in the Link Check API, which performs HTTP HEAD requests to URLs extracted from email content without validating target hosts or filtering private/internal IP addresses. An attack...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the doHead function in the Link Check API, which performs HTTP HEAD requests to URLs extracted from email content without validating target hosts or filtering private/internal IP addresses. An attack...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the doHead function in the Link Check API, which performs HTTP HEAD requests to URLs extracted from email content without validating target hosts or filtering private/internal IP addresses. An attack...

EUVD-2026-8775

Mailpit is Vulnerable to Server-Side Request Forgery SSRF via Link Check API...

CVE-2026-27808: Server-Side Request Forgery (SSRF)

Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side Request Forgery SSRF. The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering...

CVE-2026-27808 Mailpit is Vulnerable to Server-Side Request Forgery (SSRF) via Link Check API

Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side Request Forgery SSRF. The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering...

CVE-2026-27808

Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API /api/v1/message/ID/link-check is vulnerable to Server-Side Request Forgery SSRF. The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering...