# CVE-2026-5376: runZero Platform session timeout failure

> Attackers can bypass session inactivity timeouts via automatic page reloading, maintaining unauthorized access to the runZero Platform.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Apr 2026
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-gf6w-7f3p-cmx4

## What is CVE-2026-5376?

CVE-2026-5376 is a medium-severity vulnerability in runZero Platform, published on 7 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An issue that could prevent session inactivity timeouts from triggering due to automatic page reloading has been resolved. This is an instance of CWE-613: Insufficient Control of Resources After Expiration or Release, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N (5.9 Medium). This issue was fixed in version 4.0.260203.0 of the runZero Platform.

Weakness: CWE-613 (DEPRECATED: Insufficient Session Expiration)

## Which versions are affected by CVE-2026-5376?

It affects 1 product.


Products: Runzero Runzero Platform.

## How do I fix CVE-2026-5376?

No fix has been published for CVE-2026-5376 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5376 being exploited?

There is no known exploitation of CVE-2026-5376 in the wild and no public exploit code.

## Other vulnerabilities in runZero Platform

- [CVE-2026-5373](https://insights.sbomify.com/CVE-2026-5373/): runZero Platform superuser privilege escalation (high 8.1)
- [CVE-2026-5372](https://insights.sbomify.com/CVE-2026-5372/): runZero Platform SQL injection in saved queries (medium 6.4)
- [CVE-2026-5374](https://insights.sbomify.com/CVE-2026-5374/): runZero Platform MCP information leak (medium 5.8)
- [CVE-2026-5378](https://insights.sbomify.com/CVE-2026-5378/): runZero Platform user creation leak (medium 5.8)
- [CVE-2026-5384](https://insights.sbomify.com/CVE-2026-5384/): runZero Platform incorrect credential scope (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5376 and fix it if it is affected.

What it is: CVE-2026-5376 is a medium-severity vulnerability in runZero Platform, published on 7 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-5376 in the wild and no public exploit code.

Affected product: runZero Platform. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-5376/ (Markdown: https://insights.sbomify.com/CVE-2026-5376/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5376
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5376
- OSV: https://osv.dev/vulnerability/CVE-2026-5376

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5376/
Summaries are generated and may contain mistakes; the official description above is the record.