What is CVE-2026-48772?

CVE-2026-48772 is a critical-severity vulnerability in Sysown Proxysql, classified under CWE-348. CVSS score: 10.0/10. Published 2026-06-19.

How severe is CVE-2026-48772?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Auth bypass in Sysown Proxysql

CVE-2026-48772

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 <addr> <addr> <port> <port>\r\n` PP1 frame as a well-formed PROXY protocol header…

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Sysown Proxysql — versions >= 2.0.0, < 3.0.9

Weakness classification (CWE)

CWE-348
CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-48772?: CVE-2026-48772 is a critical-severity vulnerability in Sysown Proxysql, classified under CWE-348. CVSS score: 10.0/10. Published 2026-06-19.
How severe is CVE-2026-48772?: Critical severity. CVSS v3 base score is 10.0 out of 10.