Disclosure summary
Nagios Log Server versions prior to 2024R2.0.2 contain a vulnerability in the cluster manager component when requesting sensitive credentials from peer nodes over an unencrypted channel even when SSL/TLS is enabled in the product configuration. As a result, an attacker positioned on the network path can intercept credentials in transit. Captured credentials could allow the attacker to authenticate as a cluster node or service account, enabling further unauthorized access, lateral movement, or system compromise.
Source-reported weakness categories
CWE-319
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-34271
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| nagios | log_server | * {"versionEndExcluding":"2024"} |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
| nagios | log_server | 2024 |
Original records & references
- NIST NVD record
- CVE Program record
- www.nagios.com — Release Notes
- www.nagios.com — Vendor Advisory
- www.vulncheck.com — Third Party Advisory
PUBLISHED 2025-10-30T18:15:47-04:00
MODIFIED 2026-10-07T17:10:00-04:00
INGESTED 2026-10-08T12:35:14-04:00