CRITICALVulnerability
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.
Properties
- severity
- CRITICAL
- score
- 9.8
- cve_id
- CVE-2026-48773
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-06-19T20:16:17.947
- last_modified
- 2026-08-10T15:44:22.887
Related Entities (3)
HAS_WEAKNESS (1)
→[Weakness]Out-of-bounds Write
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
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