# CVE-2024-27779: Auth bypass in FortiIsolator

> Remote attackers with admin session cookies can retain access after admin deletion, requiring upgrades to FortiSandbox and FortiIsolator.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L/E:P/RL:X/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jul 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-m8h2-gg48-m54f

## What is CVE-2024-27779?

CVE-2024-27779 is a medium-severity authentication bypass vulnerability in Fortinet Fortisandbox, published on 18 Jul 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An insufficient session expiration vulnerability [CWE-613] in FortiSandbox FortiSandbox version 4.4.4 and below, version 4.2.6 and below, 4.0 all versions, 3.2 all versions and FortiIsolator version 2.4 and below, 2.3 all versions, 2.2 all versions, 2.1 all versions, 2.0 all versions, 1.2 all versions may allow a remote attacker in possession of an admin session cookie to keep using that admin's session even after the admin user was deleted.

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

## Which versions are affected by CVE-2024-27779?

It affects 2 products.


Products: Fortinet Fortiisolator, Fortinet Fortisandbox.

## How do I fix CVE-2024-27779?

No fix has been published for CVE-2024-27779 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-27779 being exploited?

There is no known exploitation of CVE-2024-27779 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortisandbox

- [CVE-2020-6649](https://insights.sbomify.com/CVE-2020-6649/): Auth bypass in Fortinet FortiIsolator (critical 9.8)
- [CVE-2021-41020](https://insights.sbomify.com/CVE-2021-41020/): Missing authorization in Fortinet FortiIsolator (high 8.8)
- [CVE-2024-55590](https://insights.sbomify.com/CVE-2024-55590/): Command injection in FortiIsolator (high 8.6)
- [CVE-2024-33507](https://insights.sbomify.com/CVE-2024-33507/): Auth bypass in FortiIsolator (high 7.0)
- [CVE-2024-54024](https://insights.sbomify.com/CVE-2024-54024/): Command injection in FortiIsolator (high 7.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-27779 and fix it if it is affected.

What it is: CVE-2024-27779 is a medium-severity authentication bypass vulnerability in Fortinet Fortisandbox, published on 18 Jul 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-27779 in the wild and no public exploit code.

Affected product: Fortinet Fortisandbox. 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-2024-27779/ (Markdown: https://insights.sbomify.com/CVE-2024-27779/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-27779
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-27779
- OSV: https://osv.dev/vulnerability/CVE-2024-27779

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-27779/
Summaries are generated and may contain mistakes; the official description above is the record.