BIT-proxysql-2026-48773

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/proxysql/BIT-proxysql-2026-48773.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-proxysql-2026-48773
Aliases
Published
2026-08-17T05:52:41Z
Modified
2026-09-08T08:48:18Z
Summary
ProxySQL pre-auth heap overflow in MySQL and PostgreSQL first-packet handling
Details

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.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:proxysql:proxysql:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
}
References

Affected packages

Bitnami / proxysql

Package

Name
proxysql
Purl
pkg:bitnami/proxysql

Severity

  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
2.0.18
Fixed
3.0.9

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/proxysql/BIT-proxysql-2026-48773.json"