CVE-2026-53759

{"id": "CVE-2026-53759", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53759", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T19:14:28.252635Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.0, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "Linuxfabrik", "product": "monitoring-plugins", "versions": [{"status": "affected", "version": "< 4.2.0"}]}]}], "published": "2026-08-18T21:16:35.880", "references": [{"url": "https://github.com/Linuxfabrik/lib/blob/main/CHANGELOG.md#v420---2026-06-02", "source": "security-advisories@github.com"}, {"url": "https://github.com/Linuxfabrik/lib/commit/1e3ca61d45e37ef118aa0c107b420ef74458697e", "source": "security-advisories@github.com"}, {"url": "https://github.com/Linuxfabrik/lib/releases/tag/v4.2.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-fpx2-jgr4", "source": "security-advisories@github.com"}, {"url": "https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-r35r-fpx2-jgr4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-377"}]}], "descriptions": [{"lang": "en", "value": "linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 4.2.0, db_sqlite.py created SQLite databases at predictable paths in the shared /tmp directory and followed attacker-created symbolic links at those paths. An attacker who controls a local monitoring account can create a symlink such as /tmp/linuxfabrik-monitoring-plugins-docker-stats.db and then trigger a sudo-authorized plugin, causing the root process to create or modify the symlink target. The primitive can overwrite arbitrary paths, cause denial of service, or manipulate an existing SQLite database through a crafted rollback journal or write-ahead log. The Monitoring Plugins integration also moved plugin caches through lib.db_sqlite.get_db_path() so they use the secured per-user directory. This issue is fixed in version 4.2.0."}, {"lang": "es", "value": "linuxfabrik-lib proporciona m\u00f3dulos Python para acceso a bases de datos, almacenamiento en cach\u00e9, ejecuci\u00f3n de shell e integraciones de API. Antes de la versi\u00f3n 4.2.0, db_sqlite.py creaba bases de datos SQLite en rutas predecibles en el directorio compartido /tmp y segu\u00eda enlaces simb\u00f3licos creados por atacantes en esas rutas. Un atacante que controla una cuenta de monitoreo local puede crear un enlace simb\u00f3lico como /tmp/linuxfabrik-monitoring-plugins-docker-stats.db y luego activar un plugin autorizado por sudo, haciendo que el proceso root cree o modifique el objetivo del enlace simb\u00f3lico. La primitiva puede sobrescribir rutas arbitrarias, causar denegaci\u00f3n de servicio o manipular una base de datos SQLite existente a trav\u00e9s de un diario de reversi\u00f3n o un registro de escritura anticipada manipulado. La integraci\u00f3n de Monitoring Plugins tambi\u00e9n movi\u00f3 las cach\u00e9s de los plugins a trav\u00e9s de lib.db_sqlite.get_db_path() para que usen el directorio seguro por usuario. Este problema est\u00e1 solucionado en la versi\u00f3n 4.2.0."}], "lastModified": "2026-10-22T21:09:59.367", "sourceIdentifier": "security-advisories@github.com"}