Oracle Trusted Answer Search: Privilege escalation via Oracle Net (PL/SQL package)
Summary
A flaw in the PL/SQL package of Oracle Trusted Answer Search 26.1 allows an attacker with low privileges and network access via Oracle Net to affect the product. Successful exploitation can allow unauthorized creation, deletion or modification of critical data, limited read access, and a repeatable hang or crash. Because the scope is changed, the impact may extend beyond Trusted Answer Search. CVSS 3.1 base score is 9.9 (critical).
Affected
- Oracle Trusted Answer Search 26.1
- Installed as a package with Oracle AI Database
Fixed in
Unknown. The patch number and fixed build are not confirmed in the sources; check Oracle's Patch Availability Document linked from the advisory.
Workaround
Unknown. No vendor workaround found. As general hardening, restrict Oracle Net listener access to required internal hosts and limit database accounts to least privilege.
Exploitation
- No evidence of exploitation in the wild found.
- No public proof of concept found.
- EPSS score 0.00411 (low predicted exploitation probability).
- Oracle states the CVE is not remotely exploitable without authentication.
Our recommendation
- Check whether Trusted Answer Search 26.1 is installed; if not, there is no direct impact.
- If installed, treat as high priority.
- Confirm the Oracle Net listener is not reachable from untrusted networks.
- Apply Oracle's patch as soon as the patch document identifies the fixed build.
- Monitor for unusual database activity meanwhile.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update Advisory October 2026 www.oracle.com
- Vulners CVE record CVE-2026-101501 vulners.com
- Strix CVE record CVE-2026-101501 www.strix.ai
- Oracle Trusted Answer Search overview documentation docs.oracle.com
- Oracle Trusted Answer Search product page www.oracle.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 15:10.
Original description (NVD)
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).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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