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CRITICAL severity

CVE-2026-101501 — Oracle

CRITICAL

CVE-2026-101501 is a critical-severity (CVSS 9.9) vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

Vulnerability in Oracle Trusted Answer Search (component: PLSQL package). The supported version that is affected is 26.1. Easily exploitable vulnerability allows low privileged attacker…

Published
Updated
Affected
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Patched
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Exploits
None indexed
Exploitation data as of Oct 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Vulnerability in Oracle Trusted Answer Search (component: PLSQL package). The supported version that is affected is 26.1. Easily exploitable vulnerability allows low privileged attacker with network access via Oracle Net to compromise Oracle Trusted Answer Search. While the vulnerability is in Oracle Trusted Answer Search, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Trusted Answer Search accessible data as well as unauthorized read access to a subset of Oracle Trusted Answer Search accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Trusted Answer Search. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H).

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-101501 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

Vulnerability in Oracle Trusted Answer Search (component: PLSQL package). The supported version that is affected is 26.1. Easily exploitable vulnerability allows low privileged attacker with network access via Oracle Net to compromise Oracle Trusted Answer Search. While the vulnerability is in Oracle Trusted Answer Search, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Trusted Answer Search accessible data as well as unauthoriz
O3 Security · Impact-Aware SCA

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CVE-2026-101501: Oracle DoS (Critical 9.9)