CVE-2026-11906: medium-severity vulnerability in IBM Db2
IBM® Db2® federated server is vulnerable to a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns by autheticated user
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
IBM · Db2Related CVEs — IBM Db2
In the same product, most dangerous first.
CVE-2026-10109CRITICALIBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handlingEPSS 0.9%CVE-2026-15955HIGHIBM® Data Server driver for JDBC and SQLJ could allow a remote attacker to perform an arbitrary file write due to improper validation of file pathsEPSS 0.5%CVE-2026-16702MEDIUMIBM® Db2® federated server could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereferenceEPSS 0.5%CVE-2026-17463MEDIUMIBM® Db2® could allow a remote authenticated attacker to cause a denial of service due to uncontrolled resource consumptionEPSS 0.5%CVE-2026-86093HIGHIBM® Db2® federated server could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands under certain conditionsEPSS 0.4%CVE-2026-10543HIGHIBM® Db2® is vulnerable to privilege escalation with a specially crafted queryEPSS 0.4%