CVE-2026-34007

**RCE** Unsanitized `X-Forwarded-For` header passed to `shell_exec()` via broken IP validation fallback in `getClientIP()`

Published Oct 15, 2026 CVSS 4.0 · 6.9 Medium EPSS 1.4% KEV · Not listed
Description
An OS command injection vulnerability has been reported to affect Notes Station 3. If exploited, the vulnerability could allow remote attackers to execute arbitrary commands.

We have already fixed the vulnerability in the following version:
Notes Station 3 3.9.11 and later

Remediation

Vendor Solution

We have already fixed the vulnerability in the following version: Notes Station 3 3.9.11 and later

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An OS command injection vulnerability has been reported to affect Notes Station 3. If exploited, the vulnerability could allow remote attackers to execute arbitrary commands. We have already fixed the vulnerability in the following version: Notes Station 3 3.9.11 and later
Title **RCE** Unsanitized `X-Forwarded-For` header passed to `shell_exec()` via broken IP validation fallback in `getClientIP()`
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
qnap
Published
Updated
Oct 15, 2026, 1:36 PM
Reserved
Mar 25, 2026, 6:18 AM
Status
Awaiting Analysis
Published
Oct 15, 2026, 10:17 AM
Modified
Oct 15, 2026, 4:32 PM