CVE-2026-103946

8.3High

Published 14 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

8.3High

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: High impact on confidentiality, integrity
Weakness: CWE-89

Impact

Authenticated attackers can read or tamper with data in the Nessus database over the network. They only need low-privilege user credentials on the Nessus deployment.

Root cause

Improper input sanitization allows SQL injection within Nessus database queries.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Fix & remediation

Upgrade Nessus to the patched release referenced in advisory TNS-2026-26. If upgrading immediately is not possible, restrict network access to the Nessus management interface and revoke untrusted user accounts.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

An SQL injection vulnerability could allow an authenticated user to read or modify data stored by Nessus.

References

https://www.tenable.com/security/tns-2026-26

Source: nvd.nist.gov/vuln/detail/CVE-2026-103946