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

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

Summary (CVE-2026-41319) MailKit (MimeKit-based) exposes a STARTTLS vulnerability where the internal read buffers of SmtpStream, ImapStream, and Pop3Stream are not flushed when upgrading to TLS with SslStream. This allows pre-TLS attacker-injected data to be treated as post-TLS, enabling a MITM-b...

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-2026-41275

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the password reset functionality on cloud.flowiseai.com sends a reset password link over the unsecured HTTP protocol instead of HTTPS. This behavior introduces the risk of a man-in-the-middle...

CVE-2026-41275 Flowise: Password Reset Link Sent Over Unsecured HTTP

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the password reset functionality on cloud.flowiseai.com sends a reset password link over the unsecured HTTP protocol instead of HTTPS. This behavior introduces the risk of a man-in-the-middle...

JLSEC-2026-182

A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver...

EUVD-2026-23752

SD-330AC and AMC Manager provided by silex technology, Inc. contain an issue with a use of a broken or risky cryptographic algorithm. Information in the traffic may be retrieved via man-in-the-middle attack...

CVE-2026-32959

SD-330AC and AMC Manager provided by silex technology, Inc. contain an issue with a use of a broken or risky cryptographic algorithm. Information in the traffic may be retrieved via man-in-the-middle attack...

CVE-2026-32959

SD-330AC and AMC Manager provided by silex technology, Inc. contain an issue with a use of a broken or risky cryptographic algorithm. Information in the traffic may be retrieved via man-in-the-middle attack...

CVE-2026-32959

CVE-2026-32959 concerns SD-330AC and AMC Manager from silex technology, Inc. and describes use of a broken or risky cryptographic algorithm, enabling information in network traffic to be retrieved via a man‑in‑the‑middle attack. The description does not specify exact affected versions, affected c...

CVE-2026-32105

A flaw was found in xrdp, an open-source Remote Desktop Protocol RDP server. When using the "Classic RDP Security" layer, xrdp fails to verify the Message Authentication Code MAC signature of encrypted RDP packets. This oversight allows an unauthenticated attacker with man-in-the-middle MITM...

CVE-2026-32105

xrdp is an open source RDP server. In versions through 0.10.5, xrdp does not implement verification for the Message Authentication Code MAC signature of encrypted RDP packets when using the "Classic RDP Security" layer. While the sender correctly generates signatures, the receiving logic lacks th...

EUVD-2026-23472

xrdp is an open source RDP server. In versions through 0.10.5, xrdp does not implement verification for the Message Authentication Code MAC signature of encrypted RDP packets when using the "Classic RDP Security" layer. While the sender correctly generates signatures, the receiving logic lacks th...

CVE-2026-32105 xrdp: RDP MAC signature (dataSignature) never verified on receive — integrity bypass in non-TLS mode

xrdp is an open source RDP server. In versions through 0.10.5, xrdp does not implement verification for the Message Authentication Code MAC signature of encrypted RDP packets when using the "Classic RDP Security" layer. While the sender correctly generates signatures, the receiving logic lacks th...

Siemens Solid Edge Improper Certificate Validation (SSA-981622)

The version of Siemens Solid Edge installed on the remote Windows host is SE2025 prior to V225.0 Update 13 or SE2026 prior to V226.0 Update 04. It is, therefore, affected by an improper certificate validation vulnerability. - Affected applications do not properly validate client certificates to...

PT-2026-33487

Name of the Vulnerable Software and Affected Versions xrdp versions prior to 0.10.6 Description xrdp fails to implement verification for the Message Authentication Code MAC signature of encrypted RDP packets when the Classic RDP Security layer is used. Although signatures are generated by the...

CVE-2026-22617

Eaton Intelligent Power Protector IPP uses an insecure cookie configuration, which could allow a network‑based attacker to intercept the cookie and exploit it through a man‑in‑the‑middle attack. This security issue has been fixed in the latest version of Eaton IPP software which is available on t...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

Apache Log4j 2.12.0 < 2.25.4 SSL Hostname Verification Bypass (CVE-2026-34477)

The version of Apache Log4j on the remote host is 2.12.0 through 2.25.3. It is, therefore, affected by a vulnerability: - The verifyHostName configuration attribute of the Ssl element was silently ignored in all versions through 2.25.3, leaving TLS connections vulnerable to interception via...