CVE-2026-48772

A flaw was found in ProxySQL, a proxy for MySQL and its forks, as well as PostgreSQL. A remote attacker can exploit this vulnerability by sending a specially crafted PROXY protocol version 1 PP1 header with an 'UNKNOWN' protocol token. Despite the specification requiring these address fields to b...

CVE-2026-48774

Summary : ProxySQL 3.0.0–3.0.8 allows read-only requests to execute multi-statement backends, enabling unintended writes via the MCP run_sql_readonly tool. The input validator uses a blacklist/allowlist on the first statement, but then runs the full string against a backend connection created wit...

CVE-2026-48774

ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. In versions 3.0.0 through 3.0.8, ProxySQL's GenAI/MCP runsqlreadonly tool violates its documented read-only contract for MySQL targets. The tool validates only the full input string with a substring blacklist and first-keyword...

CVE-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-2026-48773

ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. Versions 2.0.18 through 3.0.8 have a pre-authentication heap memory corruption vulnerability in the MySQL and PostgreSQL protocol first-read paths. A remote unauthenticated client can declare an oversized first packet length, and...

CVE-2026-48773

Summary of CVE-2026-48773 : ProxySQL (versions 2.0.18–3.0.8) contains a pre-authentication heap memory corruption in the MySQL/PostgreSQL protocol first-read paths. A remote, unauthenticated client can declare an oversized first packet length, and ProxySQL passes that attacker-controlled length t...

CVE-2026-48773 ProxySQL pre-auth heap overflow in MySQL and PostgreSQL first-packet handling

ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. Versions 2.0.18 through 3.0.8 have a pre-authentication heap memory corruption vulnerability in the MySQL and PostgreSQL protocol first-read paths. A remote unauthenticated client can declare an oversized first packet length, and...