CVEvulnerability
CVE-2026-61551
8.6 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-18
- Last modified
- 2026-09-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- Weaknesses
- CWE-674
Description
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.
Related
Weakness · CWE (1)
- CWE-674 Uncontrolled Recursion weakness
References
- https://github.com/Icinga/icinga2/commit/391504eaa9ed9aee81f84008c57ec821974b74ee github.com
- https://github.com/Icinga/icinga2/commit/3d9166ff52ff1a64a286c39af57957d63442c137 github.com
- https://github.com/Icinga/icinga2/commit/4964d2444ca5c4fae9036054554e1c6e0025fb89 github.com
- https://github.com/Icinga/icinga2/commit/ed163a8aa9d296820dd2ad14c47bf3f6a3fcce7d github.com
- https://github.com/Icinga/icinga2/pull/10908 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.14.9 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.15.4 github.com
- https://github.com/Icinga/icinga2/releases/tag/v2.16.2 github.com
- https://github.com/Icinga/icinga2/security/advisories/GHSA-wh38-wg57-5w7g github.com
- https://icinga.com/blog/icinga2-security-release-v2-16-2 icinga.com