What is CVE-2026-24891?

CVE-2026-24891 is a high-severity vulnerability in Openitcockpit, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-02-20.

How severe is CVE-2026-24891?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Openitcockpit

CVE-2026-24891

openITCOCKPIT is an open source monitoring tool built for different monitoring engines like Nagios, Naemon and Prometheus. Versions 5.3.1 and below contain an unsafe deserialization sink in the Gearman worker implementation. The worker fun…

Vulnerability class: Insecure Deserialization

EPSS: 0.002 (39.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Openitcockpit — versions < 5.4.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

https://github.com/openITCOCKPIT/openITCOCKPIT/security/advisories/GHSA-x4mq-8gfg-frc4 (x_refsource_CONFIRM)
https://github.com/openITCOCKPIT/openITCOCKPIT/releases/tag/openITCOCKPIT-5.4.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-24891?: CVE-2026-24891 is a high-severity vulnerability in Openitcockpit, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-02-20.
How severe is CVE-2026-24891?: High severity. CVSS v3 base score is 7.5 out of 10.