---
id: CVE-2025-66377
title: >-
  Pexip Infinity before 39.0 has Missing Authentication for a Critical Function
  in a product-internal API, allowing an attacker (who already has access to
  execute code on one node within a Pexip Infinity installation) to impact the
  operati…
summary: >-
  Pexip Infinity before 39.0 has Missing Authentication for a Critical Function
  in a product-internal API, allowing an attacker (who already has access to
  execute code on one node within a Pexip Infinity installation) to impact the
  operati…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
vendor: pexip
product: pexip_infinity
affected:
  - pexip_infinity < 39.0
patched:
  - pexip_infinity 39.0
published: '2025-12-25'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66377'
references:
  - url: 'https://docs.pexip.com/admin/security_bulletins.htm'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00212
epssPercentile: 0.10418
ingestedAt: '2026-09-30T23:29:32.511Z'
---

## Overview

Pexip Infinity before 39.0 has Missing Authentication for a Critical Function in a product-internal API, allowing an attacker (who already has access to execute code on one node within a Pexip Infinity installation) to impact the operation of other nodes within the installation.

## Affected

- `pexip_infinity < 39.0`

## Remediation

Upgrade past the affected range:

- `pexip_infinity 39.0`