CVE-2026-107822

NameCVE-2026-107822
DescriptionMariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, MariaDB's ACL cache could generate the same database-privilege cache key for role and localhost user names that matched because both used an empty IP component. An attacker with CREATE USER could create the colliding principal and, when the original principal's database privileges were cached, exercise privileges assigned to the other account. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mariadb (PTS)bookworm1:10.11.18-0+deb12u1vulnerable
bookworm (security)1:10.11.19-0+deb12u1vulnerable
trixie1:11.8.6-0+deb13u1vulnerable
forky1:11.8.9+ds-2fixed
sid1:11.8.9+ds-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mariadbsource(unstable)1:11.8.9+ds-1

Notes

https://github.com/MariaDB/server/security/advisories/GHSA-2m85-2x26-36rf
Fixed by: https://github.com/MariaDB/server/commit/67ea07dd3400004e4f7ae01bf977f4344bbe064b (mariadb-13.1.1, mariadb-13.0.2, mariadb-12.3.3, mariadb-11.8.9, mariadb-11.4.13, mariadb-10.11.19, mariadb-10.6.28)

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