undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy

A flaw was found in undici. When undici's ProxyAgent is configured with a SOCKS5 proxy Uniform Resource Identifier URI, it silently ignores Transport Layer Security TLS options, such as custom Certificate Authorities CAs. This allows a remote attacker to perform a Man-in-the-Middle MITM attack,...

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

CVE-2026-14612

Two off-by-one errors in the FreeIPA ipa-otpd daemon's OAuth2 device authorization handler can cause out-of-bounds memory access when processing an oversized response from a configured external OAuth2/OIDC Identity Provider. An attacker who controls or can man-in-the-middle the IdP endpoint may b...

EUVD-2026-41554

Two off-by-one errors in the FreeIPA ipa-otpd daemon's OAuth2 device authorization handler can cause out-of-bounds memory access when processing an oversized response from a configured external OAuth2/OIDC Identity Provider. An attacker who controls or can man-in-the-middle the IdP endpoint may b...

EUVD-2026-41495

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for th...

CVE-2026-9547

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for th...

CVE-2026-9547

The CVE-2026-9547 issue affects libcurl when performing SCP/SFTP transfers with CURLOT_SSH_KEYFUNCTION in the SSH key callback. A host-key type mismatch for a known_hosts entry may be silently accepted, bypassing the intended validation and allowing connections to succeed without warning, which e...

CVE-2026-9547 SSH improper host validation

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for th...

PT-2026-55548

Name of the Vulnerable Software and Affected Versions FreeIPA ipa-otpd daemon affected versions not specified Description Two off-by-one errors exist in the OAuth2 device authorization handler of the ipa-otpd daemon. These errors can lead to out-of-bounds memory access when the daemon processes a...

PYSEC-2026-691 OpenStack Nova Exposure of Sensitive Information to an Unauthorized Actor

OpenStack Nova before 2012.1 allows someone with access to an EC2ACCESSKEY equivalent to a username to obtain the EC2SECRETKEY equivalent to a password. Exposing the EC2ACCESSKEY via http or tools that allow man-in-the-middle over https could allow an attacker to easily obtain the EC2SECRETKEY. A...

PT-2026-54841

Name of the Vulnerable Software and Affected Versions pgjdbc versions 42.7.4 through 42.7.11 Description Connections using channelBinding=require can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256. This results in the loss of man-in-the-middle protectio...

GHSA-P9JG-FCR6-3MHF OnGres SCRAM silent channel-binding authentication downgrade via unsupported certificate algorithms

Summary A flaw in com.ongres.scram:scram-client allows an attacker capable of performing a TLS man-in-the-middle MITM attack to silently downgrade a connection from SCRAM-SHA-256-PLUS with channel binding to standard SCRAM-SHA-256 without channel binding, bypassing strict client-side enforcement...

Not Failing Securely ('Failing Open')

Overview Affected versions of this package are vulnerable to Not Failing Securely 'Failing Open' in the TlsServerEndpoint process when a server presents an X.509 certificate using a modern signature algorithm lacking traditional naming structures. An attacker can bypass strict client-side...

OnGres SCRAM silent channel-binding authentication downgrade via unsupported certificate algorithms

Summary A flaw in com.ongres.scram:scram-client allows an attacker capable of performing a TLS man-in-the-middle MITM attack to silently downgrade a connection from SCRAM-SHA-256-PLUS with channel binding to standard SCRAM-SHA-256 without channel binding, bypassing strict client-side enforcement...

RLSA-2026:33577 Important: ruby:4.0 security update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Security Fixes: ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Comman...

PT-2026-55221

Name of the Vulnerable Software and Affected Versions com.ongres.scram:scram-client versions prior to 3.3 com.ongres.scram:scram-common versions prior to 3.3 Description A flaw in com.ongres.scram:scram-client and com.ongres.scram:scram-common allows an attacker performing a TLS man-in-the-middle...

PT-2026-54772

Name of the Vulnerable Software and Affected Versions erlang/quic versions prior to 1.4.4 Description The QUIC client fails to authenticate the server during the TLS 1.3 handshake. Specifically, the verify process is ineffective because the CertificateVerify signature is not checked, the...

CVE-2025-36336

IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques...

CVE-2025-12530

IBM watsonx.data intelligence 5.2.2, 5.3.0, 5.3.1, 5.3.1 through patch-1 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques...

CVE-2025-12530

IBM watsonx.data intelligence CVE-2025-12530 affects 5.2.2, 5.3.0, 5.3.1, and 5.3.1 through patch-1, where data is transmitted in clear text, enabling potential MITM access to sensitive information. The connected sources provide the affected versions and the clear-text transmission root cause; no...