EUVD-2026-77588

A flaw was found in sssd, specifically within the PAM Pluggable Authentication Modules responder's protocol v1 parser, pamparseindata. A local client with access to the PAM responder's UNIX socket can exploit this by negotiating protocol v1 and sending an empty or truncated PAM request body. This...

CVE-2026-90994 Sssd: sssd: denial of service via malformed pam v1 requests

A flaw was found in sssd, specifically within the PAM Pluggable Authentication Modules responder's protocol v1 parser, pamparseindata. A local client with access to the PAM responder's UNIX socket can exploit this by negotiating protocol v1 and sending an empty or truncated PAM request body. This...

CVE-2026-90994

A vulnerability in sssd (System Security Services Daemon) allows a local denial of service via the PAM responder's protocol v1 parser , specifically the function pam_parse_in_data() . An attacker with access to the PAM responder's UNIX socket can negotiate protocol v1 and send an empty or truncat...

CVE-2026-90994

A flaw was found in sssd, specifically within the PAM Pluggable Authentication Modules responder's protocol v1 parser, pamparseindata. A local client with access to the PAM responder's UNIX socket can exploit this by negotiating protocol v1 and sending an empty or truncated PAM request body. This...

PT-2026-91261

A flaw was found in sssd, specifically within the PAM Pluggable Authentication Modules responder's protocol v1 parser, pam parse in data. A local client with access to the PAM responder's UNIX socket can exploit this by negotiating protocol v1 and sending an empty or truncated PAM request body...

SUSE SLES12: libipa_hbac-devel / libipa_hbac0 / libsss_certmap0 / etc (SUSE-SU-2026:3797-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:3797-1 advisory. This update for sssd fixes the following issue: - CVE-2026-68743: insufficient validation in the PAM responder can lead to an out-of-bounds...

BIT-PROXYSQL-2026-48772 ProxySQL: PROXY-Protocol-v1 UNKNOWN parses spoofed source IP, bypassing mysql_query_rules.client_addr ACL

ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. In versions 2.0.0 through 3.0.8, the ProxySQL MySQL frontend accepts the PROXY UNKNOWN \r\n PP1 frame as a well-formed PROXY protocol header. The HAProxy PROXY protocol v1 specification says that when the protocol token is UNKNOW...

CVE-2026-47737

A flaw was found in Puma, a Ruby/Rack web server. When setremoteaddress proxyprotocol: :v1 is enabled and persistent connections are used, Puma incorrectly re-parses PROXY protocol headers after each keep-alive request on the same connection. This allows a remote attacker to inject a second PROXY...

DEBIAN-CVE-2026-47737

Puma is a Ruby/Rack web server built for parallelism. From 5.5.0 until 7.2.1 and 8.0.2, Puma is vulnerable to source IP spoofing when setremoteaddress proxyprotocol: :v1 is enabled and persistent connections are used because Puma incorrectly re-parses PROXY protocol headers after each keep-alive...

CVE-2026-47736

Summary: CVE-2026-47736 affects the Puma Ruby/Rack web server when PROXY protocol v1 is enabled. In affected releases (5.5.0 up to 7.2.1 and 8.0.2), Puma reads incoming bytes into an internal buffer while waiting for CRLF to detect a PROXY v1 line, allowing an attacker to send data without CRLF a...

CVE-2026-47737

CVE-2026-47737 affects the Puma Ruby/Rack web server. From 5.5.0 up to 7.2.1 and 8.0.2, it is vulnerable to source IP spoofing when set_remote_address proxy_protocol: :v1 is enabled and persistent connections are used. Puma re-parses PROXY protocol headers after each keep-alive on the same connec...

GHSA-QPGP-93VX-G8V8 Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion

Impact PROXY protocol support for Puma was added in version 5.5.0. When PROXY protocol v1 support is enabled, Puma reads incoming bytes into an internal buffer. It waits for "\r\n" to determine whether a PROXY v1 line is present. If an attacker opens a TCP connection and continuously sends bytes...

PT-2026-47625

Name of the Vulnerable Software and Affected Versions Puma versions prior to 7.2.1 Puma versions prior to 8.0.2 Description When PROXY protocol v1 support is enabled, the server reads incoming bytes into an internal buffer and waits for a carriage return and line feed CRLF to identify a PROXY v1...

ubiquiti-discovery NSE Script

Extracts information from Ubiquiti networking devices. This script leverages Ubiquiti's Discovery Service which is enabled by default on many products. It will attempt to leverage version 1 of the protocol first and, if that fails, attempt version 2. Example Usage nmap -sU -p 10001 --script...