CVE-2026-24413: Icinga 2 is an open source monitoring system

Routine

MEDIUM 5.5UPGRADE

CVE-2026-24413 is a medium-severity flaw (CVSS 5.5) affecting icinga. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Icinga 2 is an open source monitoring system. Starting in version 2.3.0 and prior to versions 2.13.14, 2.14.8, and 2.15.2, the Icinga 2 MSI did not set appropriate permissions for the `%ProgramData%\icinga2\var` folder on Windows. This resulted in the its contents - including the private key of the user and synced configuration - being readable by all local users. All installations on Windows are affected. Versions 2.13.14, 2.14.8, and 2.15.2 con

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 100%)
CISA exploited list	No
Weakness	CWE-276
Published	2026-01-29
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: icinga

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-29 18:16 UTCPublished CVE record published
2026-06-17 10:23 UTCUpdated Record last modified

icinga icinga UPGRADE

Affected: >= 2.3.0 and < 2.13.14 · >= 2.14.0 and < 2.14.8 · >= 2.15.0 and < 2.15.2

Fixed in: 2.13.14, 2.14.8, 2.15.2

Safe to downgrade to: a release before 2.3.0

1. Check installed version

apt-cache policy icinga || rpm -q icinga || icinga --version

2. UPGRADE to 2.13.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade icinga

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade icinga

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.3.0 (Debian / Ubuntu)

apt-cache madison icinga sudo apt install icinga=<VERSION_BEFORE_2.3.0> sudo apt-mark hold icinga

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list icinga sudo dnf downgrade icinga-<VERSION_BEFORE_2.3.0> sudo dnf versionlock add icinga

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-24413?

icinga: upgrade to 2.13.14, 2.14.8, 2.15.2. Exact commands for each OS are on this page.

Is CVE-2026-24413 being exploited?

CVE-2026-24413 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-24413 affect?

CVE-2026-24413 affects icinga. Severity is medium (CVSS 5.5). Icinga 2 is an open source monitoring system. Starting in version 2.3.0 and prior to versions 2.13.14, 2.14.8, and 2.15.2, the Icinga 2 MSI did not set appropriate permissions for the `%ProgramData%\icinga2\var` folder on Windows. This resu

How urgent is CVE-2026-24413?

Priority 19/100. No elevated risk signals yet.

Software pages

Windows vulnerabilities

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References

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