CVE-2026-61551: fallo de gravedad alta en icinga2
Icinga 2: Stack overflow via deeply nested JSON objects
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.6epss 0.9%
Icinga 2 is an open source monitoring system. Prior to 2.14.9, 2.15.4, and 2.16.2, parsing deeply nested JSON can exhaust the call stack because nesting depth is not bounded. The affected JSON parsing paths are reachable by unauthenticated network clients through the Icinga 2 service on TCP port 5665, allowing a remote attacker to crash the process, while possible code execution has not been demonstrated. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Productos afectados
Icinga · icinga2CVEs relacionadas — icinga2
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-49369CRITICALIcinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API ConnectionsEPSS 2.9%CVE-2021-32743HIGHPasswords used to access external services inadvertently exposed through APIEPSS 1.8%CVE-2021-37698HIGHMissing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2WriterEPSS 1.4%CVE-2021-32739HIGHResults of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identitiesEPSS 1.1%CVE-2026-61552HIGHIcinga 2 DSL Injection via Unescaped Import Template NameEPSS 0.9%CVE-2026-61550CRITICALIcinga 2: Improper access control for JSON-RPC update certificate messagesEPSS 0.7%
Referencias
https://github.com/Icinga/icinga2/commit/391504eaa9ed9aee81f84008c57ec821974b74eehttps://github.com/Icinga/icinga2/commit/3d9166ff52ff1a64a286c39af57957d63442c137https://github.com/Icinga/icinga2/commit/4964d2444ca5c4fae9036054554e1c6e0025fb89https://github.com/Icinga/icinga2/commit/ed163a8aa9d296820dd2ad14c47bf3f6a3fcce7dhttps://github.com/Icinga/icinga2/pull/10908https://github.com/Icinga/icinga2/releases/tag/v2.14.9https://github.com/Icinga/icinga2/releases/tag/v2.15.4https://github.com/Icinga/icinga2/releases/tag/v2.16.2https://github.com/Icinga/icinga2/security/advisories/GHSA-wh38-wg57-5w7ghttps://icinga.com/blog/icinga2-security-release-v2-16-2