---
id: CVE-2026-57200
title: >-
  Asterisk: ARI REST-over-WebSocket read-only bypass allows arbitrary module
  path load and conditional RCE
summary: >-
  Asterisk is an open source private branch exchange and telephony toolkit.
  Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk
  22.8-cert3, an authenticated attacker with read-only permissions for the
  `Asterisk REST …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-22
  - CWE-863
vendor: asterisk
product: asterisk
affected:
  - asterisk < 20.20.1
  - 'asterisk >= 21.0.0-pre1, < 21.12.3'
  - 'asterisk >= 22.0.0-pre1, < 22.10.1'
  - 'asterisk >= 23.0.0-pre1, < 23.4.1'
  - 'certified-asterisk >= 22.8-cert1-pre1, < 22.8-cert3'
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T21:13:03.777Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-57200'
references:
  - url: >-
      https://github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5c
    label: >-
      https://github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5c
  - url: >-
      https://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533
    label: >-
      https://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533
  - url: >-
      https://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350
    label: >-
      https://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350
  - url: >-
      https://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6c
    label: >-
      https://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6c
  - url: >-
      https://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4
    label: >-
      https://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4
  - url: >-
      https://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698a
    label: >-
      https://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698a
  - url: >-
      https://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46
    label: >-
      https://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46
  - url: 'https://github.com/asterisk/asterisk/releases/tag/20.20.1'
    label: 'https://github.com/asterisk/asterisk/releases/tag/20.20.1'
  - url: 'https://github.com/asterisk/asterisk/releases/tag/21.12.3'
    label: 'https://github.com/asterisk/asterisk/releases/tag/21.12.3'
  - url: 'https://github.com/asterisk/asterisk/releases/tag/22.10.1'
    label: 'https://github.com/asterisk/asterisk/releases/tag/22.10.1'
  - url: 'https://github.com/asterisk/asterisk/releases/tag/23.4.1'
    label: 'https://github.com/asterisk/asterisk/releases/tag/23.4.1'
  - url: 'https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3'
    label: 'https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3'
  - url: 'https://github.com/asterisk/asterisk/tree/24.0.0-pre1'
    label: 'https://github.com/asterisk/asterisk/tree/24.0.0-pre1'
tags:
  - cve.org
ingestedAt: '2026-10-27T21:58:08.881Z'
---

## Overview

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, an authenticated attacker with read-only permissions for the `Asterisk REST Interface (ARI)` may, under certain conditions, execute write operations through `REST-over-WebSocket`. The authorization bypass permits `arbitrary module path` loading and conditional remote code execution. The Asterisk HTTP web server must be enabled and reachable, and the attacker must already have valid `read-only ARI credentials`. HTTP is disabled by default and binds only to 127.0.0.1 by default even when enabled. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3.

## Affected

- `asterisk < 20.20.1`
- `asterisk >= 21.0.0-pre1, < 21.12.3`
- `asterisk >= 22.0.0-pre1, < 22.10.1`
- `asterisk >= 23.0.0-pre1, < 23.4.1`
- `certified-asterisk >= 22.8-cert1-pre1, < 22.8-cert3`

## Remediation

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