Mailpit < 1.28.3 - Server-Side Request Forgery

Mailpit = 1.28.0 contains a server-side request forgery caused by insufficient validation of internal IP addresses in the /proxy endpoint, letting attackers make requests to internal network resources, exploit requires crafted HTTP GET requests. id: CVE-2026-21859 info: name: Mailpit 1.28.3 -...

-CVE-2026-23829-CTT-Mailpit-phase-reconstruction-

SimoesCTT-mailpit-phase-reconstructor Es una inyección CRLF en el servidor SMTP de Mailpit: una vulnerabilidad clásica de corrupción de datos. Pero bajo CTT, no es solo un bug. Es una oportunidad de reconstrucción de fase. CVE-2026-23829 root@kitploit: CTT-Mailpit-Phase-Reconstructor CVE-2026-238...

CTT-Mailpit-RCE-v1.0---Temporal-Resonance-Mail-Server-Takeover

🎯 CTT-Mailpit-Exploit: Puntuación Perfecta 11/10 Gusano Zero-Click Transforma una inyección básica de cabecera SMTP CVE-2026-23829 en un gusano RCE autopropagante con puntuación perfecta utilizando la Teoría del Tiempo Convergente. 📊 Transformación de Puntuación: 6.1 → 11.0/10 ⭐ Métrica Original...

CVE-2026-67446

creationtimestamp| type| source ---|---|--- 2026-09-03 00:35:04+00:00| published-proof-of-concept| https://github.com/axllent/mailpit/security/advisories/GHSA-75mr-qw9x-3r39 2026-09-03 07:31:59+00:00| seen| https://gist.github.com/alon710/3dcd56ab41cf2fc234bc88855814c85c...

CVE-2026-67445

creationtimestamp| type| source ---|---|--- 2026-09-03 00:35:02+00:00| published-proof-of-concept| https://github.com/axllent/mailpit/security/advisories/GHSA-w878-pj84-3j5v 2026-09-03 05:32:21+00:00| seen| https://gist.github.com/alon710/25d950fb1b775a5961200e6e2792284d...

EUVD-2026-63663

Mailpit: SMTP command parser buffers unbounded command lines before syntax rejection...

Mailpit: SMTP command parser buffers unbounded command lines before syntax rejection

Summary Mailpit's SMTP server reads each command line with an unbounded bufio.Reader.ReadString'\n' before parsing the command or enforcing any protocol length limit. A remote SMTP client can send an oversized single command line and force Mailpit to allocate attacker-controlled memory before the...

GHSA-W878-PJ84-3J5V Mailpit: SMTP command parser buffers unbounded command lines before syntax rejection

Summary Mailpit's SMTP server reads each command line with an unbounded bufio.Reader.ReadString'\n' before parsing the command or enforcing any protocol length limit. A remote SMTP client can send an oversized single command line and force Mailpit to allocate attacker-controlled memory before the...

GHSA-75MR-QW9X-3R39 Mailpit: Thumbnail generation decodes unbounded image dimensions before scaling

Summary Mailpit's thumbnail endpoint decodes attacker-supplied image attachments into a full raster before checking any decoded-pixel, dimension, or memory budget. A remote client that can store an email and reach the default web API can supply a compact high-dimension image, then request...

EUVD-2026-63659

Mailpit: Thumbnail generation decodes unbounded image dimensions before scaling...

CVE-2026-84697

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 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...

EUVD-2026-69788

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 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

Mailpit (open-source mail testing tool) contains a Server-Side Request Forgery (SSRF) vulnerability in its IsInternalIP deny list function (file: internal/tools/net.go). The deny list fails to block the Azure WireServer address 168.63.129.16 and the RFC 2765/6145 IPv4-translated IPv6 prefix , all...

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-2026-67447

creationtimestamp| type| source ---|---|--- 2026-08-20 22:35:02+00:00| published-proof-of-concept| https://github.com/axllent/mailpit/security/advisories/GHSA-r553-m4fv-5v97...

CVE-2026-67447

Mailpit is an email testing tool and API for developers. From 1.30.0 until 1.30.5, Mailpit's internal/smtpd/smtpd.go readData function calls bufio.Reader.ReadBytes before applying the lendata+lenline size check to the completed SMTP DATA line against Server.MaxSize. An unauthenticated SMTP client...

CVE-2026-67448

Mailpit is an email testing tool and API for developers. From 1.29.0 until 1.30.6, Mailpit's server/server.go origin middleware checks the raw RequestURI for the /api/ prefix while Go's ServeMux routes using the percent-decoded URL path, and server/websockets/client.go configures...

GHSA-8R62-W5WH-FC5M Mailpit: WebSocket origin check bypass via percent-encoded path (regression of CVE-2026-22689)

Summary The cross-site WebSocket hijacking fix was reimplemented as an origin check gated on a raw-URI prefix test, but Go's ServeMux routes on the percent-decoded path, so requesting /%61pi/events reaches the WebSocket handler while skipping the only origin control, and the upgrader itself accep...