Nagios Log Server < 2026R1.0.1 Authenticated Command Injection via Natural Language Queries
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
Nagios Log Server versions prior to 2026R1.0.1 contain an authenticated command injection vulnerability in the experimental 'Natural Language Queries' feature. When this feature is configured, certain user-controlled settings—including model selection and connection parameters—are read from the global configuration and concatenated into a shell command that is executed via shell_exec() without proper input handling or command-line argument sanitation. An authenticated user with access to the 'Global Settings' page can supply crafted values in these fields to inject additional shell commands, resulting in arbitrary command execution as the 'www-data' user and compromise of the Log Server host.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Nagios | Log Server | before 2026R1.0.1 | 2026R1.0.1 | Patch available | CNA |
- Log Server VendorNagios Affected before 2026R1.0.1 Fixed in 2026R1.0.1 Patch available CNA
Remediation
- Fix · CNA Log Server (Nagios) Fixed in 2026R1.0.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Nagios Log Server 2026R1.0.1
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2025-24455 Nagios Log Server < 2026R1.0.1 Local Privilege Escalation via Writable Scripts and Sudo RulesPriority LOW 39
Timeline
- 2026-10-02 Threatist record created from CVE-2025-34322
- 2026-10-03 Alias added: GHSA-qrg4-jqvv-5724
References
More Nagios Log Server vulnerabilities
- TI-2025-21095 Cross Site Scripting vulnerability in Nagios Log Server v.2024R1.3.1 allows a remote… CVSS 3.1HIGH 8.3
- TI-2025-28646 Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext… CVSS 3.1CRITICAL 9.9
- TI-2025-28647 Incorrect authorization in Nagios Log Server CVSS 3.1HIGH 8.5
- TI-2021-14218 Nagios Log Server before 2.1.9 contains Reflected XSS in the dropdown box for the alert… CVSS 3.1MEDIUM 5.4
- TI-2025-24416 Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID CVSS 4.0CRITICAL 9.4
- TI-2023-06689 Nagios Log Server < 2024R1 Incorrect Authorization Granting Full API Access CVSS 4.0HIGH 8.7
Sources
- CVE-2025-34322 · CVE Program
- CVE-2025-34322 · NVD
- FIRST EPSS
- GHSA-qrg4-jqvv-5724 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences