CVE Explorer
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"proxysql","vendor":"sysown","versions":[{"status":"affected","version":">= 2.0.18, < 3.0.9"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/sysown/proxysql/releases/tag/v3.0.9","tags":["x_refsource_MISC"],"url":"https://github.com/sysown/proxysql/releases/tag/v3.0.9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/sysown/proxysql/security/advisories/GHSA-58ww-865x-grpr"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/adp/0/references/0
{"name":"https://github.com/sysown/proxysql/security/advisories/GHSA-58ww-865x-grpr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sysown/proxysql/security/advisories/GHSA-58ww-865x-grpr"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:81f35a5dcd6daf95d16648898b1cb56cc17db2fdc9a065fa5b8c1fdbc442eda2 · sha256:c877fdafdc940ffc… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.