Asterisk: ARI REST-over-WebSocket read-only bypass allows arbitrary module path load and conditional RCE

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-57200
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-27 21:18:06 UTC
Updated2026-10-30 21:17:12 UTC
DescriptionAsterisk 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

EPSS: 0.008790000 probability, percentile 0.590920000 (date 2026-11-02)

Problem Types: CWE-22 | CWE-863 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Asterisk Asterisk affected < 20.20.1 Not specified
CNA Asterisk Asterisk affected >= 21.0.0-pre1, < 21.12.3 Not specified
CNA Asterisk Asterisk affected >= 22.0.0-pre1, < 22.10.1 Not specified
CNA Asterisk Asterisk affected >= 23.0.0-pre1, < 23.4.1 Not specified
CNA Certified-asterisk Certified-asterisk affected >= 22.8-cert1-pre1, < 22.8-cert3 Not specified

References

ReferenceSourceLinkTags
github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5c [email protected] github.com
github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6... [email protected] github.com
github.com/asterisk/asterisk/releases/tag/22.10.1 [email protected] github.com
github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e2541... [email protected] github.com
github.com/asterisk/asterisk/releases/tag/20.20.1 [email protected] github.com
github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d... [email protected] github.com
github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f48401229846... [email protected] github.com
github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3 [email protected] github.com
github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc3040... [email protected] github.com
github.com/asterisk/asterisk/releases/tag/23.4.1 [email protected] github.com
github.com/asterisk/asterisk/releases/tag/21.12.3 [email protected] github.com
github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b0... [email protected] github.com
github.com/asterisk/asterisk/tree/24.0.0-pre1 [email protected] github.com
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