Authorization bypass in LibreNMS Smokeping graphs exposes device data
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
LibreNMS through 26.9.1.1 contains an authorization bypass in includes/html/graphs/smokeping/auth.inc.php, which checks the source probe device instead of the rendered target device. Restricted users permitted on a probe device can request smokeping_in or smokeping_out graphs for arbitrary device IDs, exposing latency data and device names. An attacker needs low-privilege authenticated access and no user interaction, and the flaw is classified under CWE-639.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
LibreNMS through 26.9.1.1 contains an authorization bypass vulnerability in includes/html/graphs/smokeping/auth.inc.php that checks the src probe device instead of the rendered target device. Restricted users permitted on a probe device can request smokeping_in or smokeping_out graphs with arbitrary device ids to view latency data and enumerate device names.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for LibreNMS.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108715
- 2026-10-11 Alias added: GHSA-jxv8-wv9v-5824
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → MEDIUM
References
More librenms vulnerabilities
- TI-2018-14479 LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the… CVSS 3.0CRITICAL 9.8
- TI-2026-71173 LDAP filter injection in LibreNMS allows authentication bypass CVSS 4.0CRITICAL 9.2
- TI-2026-59134 LibreNMS before 26.8.0 Authentication Bypass via API Token Type Confusion CVSS 4.0CRITICAL 9.2
- TI-2026-57885 LibreNMS before 26.7.0 Stored XSS via Oxidized API CVSS 4.0CRITICAL 9.2
- TI-2022-03735 Insufficient Session Expiration in librenms/librenms CVSS 3.1CRITICAL 9.8
- TI-2026-57886 LibreNMS before 26.5.0 Remote Code Execution via AboutController CVSS 4.0HIGH 8.7
Sources
- CVE-2026-108715 · CVE Program
- CVE-2026-108715 · NVD
- FIRST EPSS
- GHSA-jxv8-wv9v-5824 · GitHub Advisory Database · CC BY 4.0
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