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CVE-2026-107816GHSA-wfqg-88r5-55f6

server: MariaDB: `qc_info` plugin can do OOB reads if query contains \0

MariaDB serverDatabases
Open in ThreatlineRecord JSON
CVSS
6.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 22% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published9 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

MariaDB 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, the qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. 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.

Text from CVE List

Affected versions 6

  • serveraffected: >= 10.6.1, < 10.6.28CVE List
  • serveraffected: >= 10.11.1, < 10.11.19CVE List
  • serveraffected: >= 11.4.1, < 11.4.13CVE List
  • serveraffected: >= 11.8.1, < 11.8.9CVE List
  • serveraffected: >= 12.3.1, < 12.3.3CVE List
  • serveraffected: >= 13.0.1, < 13.0.2CVE List

References 9