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CVE-2024-49369 Details

Description

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html	CVE	Mailing ListThird Party Advisory
https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c	[email protected]	Patch
https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8	[email protected]	Patch
https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe	[email protected]	Patch
https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6	[email protected]	Patch
https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831	[email protected]	Patch
https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv	[email protected]	PatchVendor Advisory
https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3	[email protected]	Release Notes

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-295	Improper Certificate Validation	[email protected]

Affected Products

Product	Versions
icinga icinga	>= 2.4.0, < 2.11.12 >= 2.12.0, < 2.12.11 >= 2.13.0, < 2.13.10 >= 2.14.0, < 2.14.3
CPE cpe:2.3:a:icinga:icinga:::::::: Remediation No remediation found in references.
debian debian linux	11.0
CPE cpe:2.3:o:debian:debian_linux:11.0:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 26, 2025	Reanalysis	[email protected]
Nov 26, 2025	Initial Analysis	[email protected]
Nov 3, 2025	CVE Modified	CVE
Nov 12, 2024	New CVE Received	[email protected]