---
id: CVE-2026-109758
title: >-
  Perforce Helix Authentication Service (HAS) deployments that retain the
  shipped default SCIM bearer token are vulnerable to unauthorized access when
  the SCIM endpoint is reachable by an attacker
summary: >-
  Perforce Helix Authentication Service (HAS) deployments that retain the
  shipped default SCIM bearer token are vulnerable to unauthorized access when
  the SCIM endpoint is reachable by an attacker. In affected versions of HAS,
  the installa…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-798
  - CWE-1321
vendor: Perforce
product: Helix Authentication Service
affected:
  - helix_authentication_service >= 2022.1 <= 2025.2
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:55:59.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109758'
references:
  - url: >-
      https://portal.perforce.com/s/cve/a91Qi000003GITtIAO/unauthenticated-rce-via-prototype-pollution-in-helix-authentication-service
    label: security@puppet.com
  - url: >-
      https://perforce1.lightning.force.com/lightning/r/CVE__c/a91Qi000003GITtIAO/view
    label: security@puppet.com
tags:
  - nvd
  - cve.org
epss: 0.00354
epssPercentile: 0.28981
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-14T19:02:27.417637Z'
cvssSource: cna
ingestedAt: '2026-10-13T05:15:48.279Z'
---

## Overview

Perforce Helix Authentication Service (HAS) deployments that retain the shipped default SCIM bearer token are vulnerable to unauthorized access when the SCIM endpoint is reachable by an attacker. In affected versions of HAS, the installation templates contain a default credential which the installer copies into the active configuration; the installer and configuration script do not automatically replace that value with a random token. An attacker who knows the default token can authenticate to the SCIM API and perform user and group operations allowed by the configured provisioning backend.

This issue can be chained with CVE-2026-61834 in affected releases of the scim-patch dependency.

This vulnerability exists in version 2022.1 - 2025.2 of HAS however the underlying defect was removed in version 2026.1 which was released July 17th 2026. The vulnerability was identified in older versions of HAS after version 2026.1 was released.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.