| Name | CVE-2026-34303 |
| Description | Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1134614 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mariadb (PTS) | bookworm | 1:10.11.18-0+deb12u1 | fixed |
| trixie | 1:11.8.6-0+deb13u1 | fixed |
| forky, sid | 1:11.8.8-1 | fixed |
| mysql-8.0 (PTS) | sid | 8.0.46-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mariadb | source | bookworm | 1:10.11.18-0+deb12u1 | | | |
| mariadb | source | trixie | 1:11.8.6-0+deb13u1 | | | |
| mariadb | source | (unstable) | 1:11.8.6-1 | | | |
| mysql-8.0 | source | (unstable) | 8.0.46-1 | | | 1134614 |
Notes
Fixed in MariaDB: 12.2.2, 11.8.6, 11.4.10, 10.11.16