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Tenable Security Center CVE-2026-19626

| EUVDEUVD-2026-58727 CRITICAL
Eval Injection (CWE-95)
2026-08-14 vulnreport@tenable.com GHSA-g9q7-qqmw-jvx6
9.4
CVSS 4.0 · Vendor: tenable
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Severity by source

Vendor (tenable) PRIMARY
9.4 CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.9 CRITICAL

Network-reachable report feature exploitable by any low-privilege account (PR:L) with no user interaction; eval injection yields full code execution and the service account's broader reach justifies S:C with C/I/A:H.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (tenable).

CVSS VectorVendor: tenable

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 14, 2026 - 18:02 EUVD
Analysis Generated
Aug 14, 2026 - 17:30 vuln.today
CVE Published
Aug 14, 2026 - 17:17 cve.org
CRITICAL 9.4

DescriptionCVE.org

A remote code execution vulnerability exists in Tenable Security Center's report generation functionality. An authenticated, non-administrative user could exploit this issue by supplying specially crafted input that is later processed unsafely during server-side report rendering, resulting in arbitrary code execution with the privileges of the service account.

AnalysisAI

Remote code execution in Tenable Security Center's report-generation subsystem allows an authenticated, non-administrative user to run arbitrary code with the privileges of the service account by submitting crafted input that is unsafely evaluated during server-side report rendering. Because Security Center is itself a centralized vulnerability-management platform holding scan data and credentials for an entire estate, compromise of the service account is high-impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate with low-privilege SC account
Delivery
Craft report input with injected code directive
Exploit
Submit and trigger report generation
Execution
Server evaluates payload during rendering
Persist
Execute arbitrary code as service account
Impact
Access scan data and pivot into estate

Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated account with access to the report-generation feature of Tenable Security Center (CVSS PR:L confirms a low-privilege but non-anonymous account is needed; administrative rights are explicitly NOT required). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 9.4 (Critical) is driven by a network vector with low attack complexity, high impact to confidentiality, integrity and availability of both the vulnerable system and subsequent systems, and - importantly - a privilege requirement of PR:L rather than PR:N, meaning some valid low-privilege account is a hard prerequisite. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An analyst-level user who already holds valid Security Center credentials (for example a contractor or a compromised low-privilege account) crafts a malicious report input containing an injected code directive, then triggers report generation; the server evaluates the payload during rendering and executes attacker-controlled commands as the SC service account. From there the attacker can read stored scan results and credentials and pivot into the managed environment. …
Remediation Patch available per vendor advisory: apply the fixed Tenable Security Center release identified in tns-2026-22 (https://www.tenable.com/security/tns-2026-22); the input data does not include an exact fix version, so confirm the target build directly from the advisory before scheduling the upgrade. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: immediately inventory all Tenable Security Center instances and network configurations, restrict access to the console and report-generation endpoints to essential personnel only, and enable comprehensive audit logging for all report generation activities and service account operations. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-19626 vulnerability details – vuln.today

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