Live › vulnerability › CVE-2026-91479
Go to dashboardA flaw in the RDBMS component of Oracle Database Server lets an unauthenticated attacker hang or repeatedly crash the database. The attacker needs access to the physical network segment attached to the hardware running the database.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Only deployments running Oracle Database Server versions 23.4.0 through 23.26.3 are listed as affected. The attack needs an attacker on the physical or adjacent network segment attached to the database hardware, so internet-facing or cloud-isolated databases are less exposed. Teams whose database hosts sit on isolated segments can rank this lower.
No product ranges from the sources yet.
SELECT * FROM v$version; and compare it to the affected range 23.4.0 through 23.26.3Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the RDBMS executes to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
This page as .md · .json · in your agent: get_signal("CVE-2026-91479")
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