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Vulnerable Software

Vulnerability Details 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 ProxySQL passes that attacker-controlled length directly to `recv()` while writing into a fixed 32 KB input queue. Version 3.0.9 patches the issue.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.005

EPSS Ranking 38.4%

CVSS Severity

CVSS v3 Score 9.8

References

Products affected by CVE-2026-48773

Proxysql » Proxysql » Version: 2.0.18

cpe:2.3:a:proxysql:proxysql:2.0.18
Proxysql » Proxysql » Version: 2.1.0

cpe:2.3:a:proxysql:proxysql:2.1.0
Proxysql » Proxysql » Version: 2.1.1

cpe:2.3:a:proxysql:proxysql:2.1.1
Proxysql » Proxysql » Version: 2.2.0

cpe:2.3:a:proxysql:proxysql:2.2.0
Proxysql » Proxysql » Version: 2.2.1

cpe:2.3:a:proxysql:proxysql:2.2.1
Proxysql » Proxysql » Version: 2.2.2

cpe:2.3:a:proxysql:proxysql:2.2.2
Proxysql » Proxysql » Version: 2.3.0

cpe:2.3:a:proxysql:proxysql:2.3.0
Proxysql » Proxysql » Version: 2.3.1

cpe:2.3:a:proxysql:proxysql:2.3.1
Proxysql » Proxysql » Version: 2.3.2

cpe:2.3:a:proxysql:proxysql:2.3.2
Proxysql » Proxysql » Version: 2.4.0

cpe:2.3:a:proxysql:proxysql:2.4.0
Proxysql » Proxysql » Version: 2.4.1

cpe:2.3:a:proxysql:proxysql:2.4.1
Proxysql » Proxysql » Version: 2.4.2

cpe:2.3:a:proxysql:proxysql:2.4.2
Proxysql » Proxysql » Version: 2.4.3

cpe:2.3:a:proxysql:proxysql:2.4.3
Proxysql » Proxysql » Version: 2.4.4

cpe:2.3:a:proxysql:proxysql:2.4.4
Proxysql » Proxysql » Version: 2.4.5

cpe:2.3:a:proxysql:proxysql:2.4.5
Proxysql » Proxysql » Version: 2.4.6

cpe:2.3:a:proxysql:proxysql:2.4.6
Proxysql » Proxysql » Version: 2.4.7

cpe:2.3:a:proxysql:proxysql:2.4.7
Proxysql » Proxysql » Version: 2.4.8

cpe:2.3:a:proxysql:proxysql:2.4.8
Proxysql » Proxysql » Version: 2.5.0

cpe:2.3:a:proxysql:proxysql:2.5.0
Proxysql » Proxysql » Version: 2.5.1

cpe:2.3:a:proxysql:proxysql:2.5.1
Proxysql » Proxysql » Version: 2.5.2

cpe:2.3:a:proxysql:proxysql:2.5.2
Proxysql » Proxysql » Version: 2.5.3

cpe:2.3:a:proxysql:proxysql:2.5.3
Proxysql » Proxysql » Version: 2.5.4

cpe:2.3:a:proxysql:proxysql:2.5.4
Proxysql » Proxysql » Version: 2.5.5

cpe:2.3:a:proxysql:proxysql:2.5.5
Proxysql » Proxysql » Version: 2.6.0

cpe:2.3:a:proxysql:proxysql:2.6.0
Proxysql » Proxysql » Version: 2.6.1

cpe:2.3:a:proxysql:proxysql:2.6.1
Proxysql » Proxysql » Version: 2.6.2

cpe:2.3:a:proxysql:proxysql:2.6.2
Proxysql » Proxysql » Version: 2.6.3

cpe:2.3:a:proxysql:proxysql:2.6.3
Proxysql » Proxysql » Version: 2.6.4

cpe:2.3:a:proxysql:proxysql:2.6.4
Proxysql » Proxysql » Version: 2.6.5

cpe:2.3:a:proxysql:proxysql:2.6.5
Proxysql » Proxysql » Version: 2.6.6

cpe:2.3:a:proxysql:proxysql:2.6.6
Proxysql » Proxysql » Version: 2.6.6.1

cpe:2.3:a:proxysql:proxysql:2.6.6.1
Proxysql » Proxysql » Version: 2.7.0

cpe:2.3:a:proxysql:proxysql:2.7.0
Proxysql » Proxysql » Version: 2.7.1

cpe:2.3:a:proxysql:proxysql:2.7.1
Proxysql » Proxysql » Version: 2.7.2

cpe:2.3:a:proxysql:proxysql:2.7.2
Proxysql » Proxysql » Version: 2.7.3

cpe:2.3:a:proxysql:proxysql:2.7.3
Proxysql » Proxysql » Version: 3.0.0

cpe:2.3:a:proxysql:proxysql:3.0.0
Proxysql » Proxysql » Version: 3.0.1

cpe:2.3:a:proxysql:proxysql:3.0.1
Proxysql » Proxysql » Version: 3.0.2

cpe:2.3:a:proxysql:proxysql:3.0.2
Proxysql » Proxysql » Version: 3.0.3

cpe:2.3:a:proxysql:proxysql:3.0.3
Proxysql » Proxysql » Version: 3.0.4

cpe:2.3:a:proxysql:proxysql:3.0.4
Proxysql » Proxysql » Version: 3.0.5

cpe:2.3:a:proxysql:proxysql:3.0.5
Proxysql » Proxysql » Version: 3.0.6

cpe:2.3:a:proxysql:proxysql:3.0.6
Proxysql » Proxysql » Version: 3.0.7

cpe:2.3:a:proxysql:proxysql:3.0.7
Proxysql » Proxysql » Version: 3.0.8

cpe:2.3:a:proxysql:proxysql:3.0.8

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Vulnerable Software

Vulnerability Details CVE-2026-48773

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