CVE-2026-61550

Source
https://cve.org/CVERecord?id=CVE-2026-61550
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61550.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-61550
Aliases
  • GHSA-vj39-ww8j-vvx5
Downstream
Published
2026-09-18T17:21:18Z
Modified
2026-09-26T08:12:57Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Icinga 2: Improper access control for JSON-RPC update certificate messages
Details

Icinga 2 is an open source monitoring system. From 2.8 until 2.14.9, 2.15.4, and 2.16.2, certificate update JSON-RPC message handling does not validate that the sender is a trusted endpoint. An unauthenticated network attacker able to connect to TCP port 5665 can replace the node certificate and trusted CA certificate, impersonate a trusted node, and take control of the node. This issue is fixed in versions 2.14.9, 2.15.4, and 2.16.2.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61550.json"
}
References

Affected packages

Git / github.com/icinga/icinga2

Affected ranges

Type
GIT
Repo
https://github.com/icinga/icinga2
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "introduced": "2.8"
        },
        {
            "fixed": "2.14.9"
        },
        {
            "introduced": "2.15.0"
        },
        {
            "fixed": "2.15.4"
        },
        {
            "introduced": "2.16.0"
        },
        {
            "fixed": "2.16.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v2.*
v2.15.0
v2.15.3
v2.16.0
v2.16.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61550.json"
vanir_signatures
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vanir_signatures_modified
"2026-09-26T08:12:57Z"