CVE-2026-64878 | Unvalidated input in asset filter parameters allows shell me… | CVSS 9.9 CRITICAL

Description

Unvalidated input in asset filter parameters allows shell metacharacters to escape command argument handling, resulting in remote code execution as a low-privileged OS user via the Analysis REST endpoint.

Metadata

CVE ID: CVE-2026-64878
State: PUBLISHED
Assigner: tenable
Reserved: 2026-07-20 19:19 UTC
Published: 2026-07-21 19:41 UTC
Last updated: 2026-07-22 18:25 UTC
Primary CWE: CWE-78
CWE-78 Improper neutralization of special elements used in a…
Vendor / Product: Tenable, Inc. / Security Center
Sources: cve.org · NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Tenable, Inc.	Security Center	Linux	0 < 6.8.0

Weakness (CWE)

CWE	Source	Description
CWE-78	cna	CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.9	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.4	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References (1)

https://www.tenable.com/security/tns-2026-19