Widely used database server; high-severity Privilege Escalation; affects multiple versions; patch available.
CVE-2026-48165
MariaDB Galera Privilege Escalation via wsrep SST vars
Is CVE-2026-48165 being exploited?
Not confirmed. CVE-2026-48165 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.5% probability of exploitation in the next 30 days.
How severe is CVE-2026-48165?
CVE-2026-48165 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-48165?
Yes. A fix has been recorded for CVE-2026-48165. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48165 affect?
CVE-2026-48165 affects MariaDB Server (Galera) versions affected: 10.6.1–10.6.26, 10.11.1–10.11.17, 11.4.1–11.4.11, 11.8.1–11.8.7, 12.3.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48165?
Upgrade to patched releases (10.6.27+, 10.11.18+, 11.4.12+, 11.8.8+, 12.3.2+)
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Privilege escalation to mariadbd UID on Galera joiner by abusing wsrep_sst_* vars to run shell commands.
Patch when possible
- affected>= 10.6.1 and < 10.6.27
- affected>= 10.11.1 and < 10.11.18
- affected>= 11.4.1 and < 11.4.12
- affected>= 11.8.1 and < 11.8.8
- affected>= 12.3.1 and < 12.3.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.