---
title: "CVE-2026-39117: AltumCode 66Uptime - Remote Code Execution"
description: "AltumCode 66Uptime < 54.0.0 and 66Uptime ping-servers plugin < 2.0.0 contain a remote code execution caused by improper input handling in index.php, letting remote attackers execute arbitrary code, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-39117/
---

# CVE-2026-39117 AltumCode 66Uptime - Remote Code Execution

AltumCode 66Uptime < 54.0.0 and 66Uptime ping-servers plugin < 2.0.0 contain a remote code execution caused by improper input handling in index.php, letting remote attackers execute arbitrary code, exploit requires no special privileges.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.75% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-39117)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

29 September 2026

Updated

15 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Upgrade 66Uptime to version 54.0.0 and ping-servers plugin to version 2.0.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-39117](https://nvd.nist.gov/vuln/detail/CVE-2026-39117)
- [https://www.glimmernet.com/security/gt-2026-001-ssrf-66uptime-ping-servers/](https://www.glimmernet.com/security/gt-2026-001-ssrf-66uptime-ping-servers/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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