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CVE-2026-86427
8.7 HIGH
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): High (H)
- Vulnerable System Impact Integrity (VI): High (H)
- Vulnerable System Impact Availability (VA): High (H)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): High (H)
- Modified Vulnerable System Impact Integrity (MVI): High (H)
- Modified Vulnerable System Impact Availability (MVA): High (H)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
LibreNMS before 26.8.0 Argument Injection via graph_title
LibreNMS before 26.8.0 contains an argument injection vulnerability in the graph_title parameter that allows authenticated attackers to inject arbitrary rrdtool arguments by breaking out of double-quote escaping. Attackers can inject DEF and LINE arguments to read RRD files from unauthorized devices, or use newline injection to execute arbitrary rrdtool commands, bypassing per-device authorization checks.
References
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GitHub Security Advisory (GHSA-3hvv-wxpw-cx83) vendor-advisory
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VulnCheck Advisory: LibreNMS before 26.8.0 Argument Injection via graph_title third-party-advisory
Affected products
librenms
- ==26.8.0
- <26.8.0
Matching in nixpkgs
pkgs.librenms
Auto-discovering PHP/MySQL/SNMP based network monitoring
pkgs.python313Packages.aiolibrenms
Asynchronous library to fetch data from a LibreNMS instance
-
nixos-unstable -
- nixos-unstable-small 0.0.3
pkgs.python314Packages.aiolibrenms
Asynchronous library to fetch data from a LibreNMS instance
-
nixos-unstable -
- nixos-unstable-small 0.0.3
Package maintainers
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@johannwagner Johann Wagner <nix@wagner.digital>
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@NetaliDev Jennifer Graul <me@netali.de>
-
@JamieMagee Jamie Magee <jamie.magee@gmail.com>