Vulnerability · Published Feb 20, 2026 · Assigned by GitHub_M

CVE-2026-24892openITCOCKPIT has Unsafe Deserialization in openITCOCKPIT Changelog Handling

High 7.5

In plain English

A high-severity unsafe deserialization in openITCOCKPIT from openITCOCKPIT. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.9%top 39.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

openITCOCKPIT is an open source monitoring tool built for different monitoring engines like Nagios, Naemon and Prometheus. openITCOCKPIT Community Edition 5.3.1 and earlier contains an unsafe PHP deserialization pattern in the processing of changelog entries. Serialized changelog data derived from attacker-influenced application state is unserialized without restricting allowed classes. Although no current application endpoint was found to introduce PHP objects into this data path, the presence of an unrestricted unserialize() call constitutes a latent PHP object injection vulnerability. If future code changes, plugins, or refactors introduce object values into this path, the vulnerability could become immediately exploitable with severe impact, including potential remote code execution.

Affected products (as reported)

Vendor	Product	Versions
openITCOCKPIT	openITCOCKPIT	< 5.4.0

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/openITCOCKPIT/openITCOCKPIT/security/advisories/GHSA-g83p-vvjm-g39x x_refsource_CONFIRM
https://github.com/openITCOCKPIT/openITCOCKPIT/commit/975e0d0dfb79898568afbbfdba8f647d92612a69 x_refsource_MISC
https://github.com/openITCOCKPIT/openITCOCKPIT/releases/tag/openITCOCKPIT-5.4.0 x_refsource_MISC