CVE-2026-67598

CVE-2026-67598 Emlog Pro — Disabled TLS Certificate Validation in the AI Assistant Network-adjacent MITM → LLM-provider API-key theft & AI-response injection Summary · Attack Flow · Affected Code · Proof · Remediation · Timeline · References 📋 At a glance | ---|--- CVE ID| CVE-2026-67598 Product|...

Astra Linux – Vulnerability in exim4

The STARTTLS feature in Exim up to 4.94.2 allows for response injection buffering during MTA SMTP sending...

PYSEC-2026-3805 aiosmtplib: STARTTLS response injection

Impact When a connection is upgraded with STARTTLS, aiosmtplib reads the server's 220 go-ahead reply and immediately performs the TLS handshake without discarding any data still sitting in the receive buffer. Bytes the protocol read off the plaintext socket before the handshake survive across the...

aiosmtplib: STARTTLS response injection

Impact When a connection is upgraded with STARTTLS, aiosmtplib reads the server's 220 go-ahead reply and immediately performs the TLS handshake without discarding any data still sitting in the receive buffer. Bytes the protocol read off the plaintext socket before the handshake survive across the...

GHSA-VXJ7-4XRP-5VR4 aiosmtplib: STARTTLS response injection

Impact When a connection is upgraded with STARTTLS, aiosmtplib reads the server's 220 go-ahead reply and immediately performs the TLS handshake without discarding any data still sitting in the receive buffer. Bytes the protocol read off the plaintext socket before the handshake survive across the...

CVE-2026-55558 aiosmtplib: STARTTLS response injection

aiosmtplib is an asynchronous SMTP client for use with asyncio. Prior to 5.1.2, SMTPProtocol.starttls in src/aiosmtplib/protocol.py consumes the server's 220 response and starts the TLS handshake without clearing SMTPProtocol.buffer. An active network attacker can place attacker-chosen SMTP...

CVE-2026-55558 aiosmtplib: STARTTLS response injection

aiosmtplib is an asynchronous SMTP client for use with asyncio. Prior to 5.1.2, SMTPProtocol.starttls in src/aiosmtplib/protocol.py consumes the server's 220 response and starts the TLS handshake without clearing SMTPProtocol.buffer. An active network attacker can place attacker-chosen SMTP...

CVE-2026-55558 aiosmtplib: STARTTLS response injection

aiosmtplib is an asynchronous SMTP client for use with asyncio. Prior to 5.1.2, SMTPProtocol.starttls in src/aiosmtplib/protocol.py consumes the server's 220 response and starts the TLS handshake without clearing SMTPProtocol.buffer. An active network attacker can place attacker-chosen SMTP...

CVE-2026-55558

CVE-2026-55558 affects aiosmtplib , an asynchronous SMTP client for Python's asyncio, in versions prior to 5.1.2 . The vulnerability resides in SMTPProtocol.start_tls (src/aiosmtplib/protocol.py), which consumes the server's 220 response and initiates the TLS handshake without clearing SMTPProtoc...

PT-2026-79027

Name of the Vulnerable Software and Affected Versions aiosmtplib versions prior to 5.1.2 Description The SMTPProtocol.start tls function in src/aiosmtplib/protocol.py fails to clear the SMTPProtocol. buffer after consuming the server's 220 response and initiating the TLS handshake. A network...

Exploit for CVE-2026-67598

CVE-2026-67598 Emlog Pro — Disabled TLS Certificate Validation i...

PT-2026-67487

Name of the Vulnerable Software and Affected Versions Emlog Pro versions prior to 2.6.24 Description In the file include/service/ai.php, TLS certificate validation is disabled, allowing network-adjacent attackers to intercept outbound HTTPS requests to configured Large Language Model LLM provider...

CVE-2026-47206

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.39.9, Dragonfly has a RESP Protocol Injection via Lua redis.errorreply in EvalSerializer. An authenticated user can inject arbitrary RESP messages into the connection's response stream, potentially causing...

CVE-2026-6733

A flaw was found in undici. An attacker-controlled upstream server can exploit a vulnerability in Undici's HTTP/1.1 client, specifically related to response queue poisoning on reused keep-alive sockets. This allows the attacker to inject an unsolicited HTTP/1.1 response onto an idle socket...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the HTTP/1.1 client when an attacker-controlled upstream server injects an unsolicited response onto an idle keep-alive...

CVE-2026-41319

MailKit is a cross-platform mail client library built on top of MimeKit. A STARTTLS Response Injection vulnerability in versions prior to 4.16.0 allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication...

CVE-2026-41319 MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade

MailKit is a cross-platform mail client library built on top of MimeKit. A STARTTLS Response Injection vulnerability in versions prior to 4.16.0 allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication...

CVE-2026-41319: Improper Neutralization of Special Elements in Output Used by a Downstream Component

MailKit is a cross-platform mail client library built on top of MimeKit. A STARTTLS Response Injection vulnerability in versions prior to 4.16.0 allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication...

PT-2026-34845

Name of the Vulnerable Software and Affected Versions MailKit versions prior to 4.16.0 Description A STARTTLS Response Injection issue allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary. This can enable a SASL authentication...

USN-8106-1: Valkey vulnerabilities

It was discovered that Valkey incorrectly handled errors for lua scripts. An attacker could possibly use this issue to inject arbitrary information into the response stream for other clients. CVE-2025-67733 It was discovered that Valkey incorrectly handled malformed cluster bus messages. A remote...