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CVE-2026-57200

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

CVSS score

7.5

EPSS probability

—

Risk score

0.8

Published

1 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

Asterisk ARI REST-over-WebSocket Authorization Bypass Vulnerability

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

An authorization bypass vulnerability in Asterisk allows an authenticated attacker with read-only ARI credentials to perform write operations via REST-over-WebSocket under certain conditions.

Why does it matter?

This security flaw enables attackers to perform unauthorized module path loading and conditional remote code execution, compromising system integrity and confidentiality.

What should be done?

  • Follow the vendor advisory to apply necessary updates.
  • Review the accessibility and configuration of the HTTP web server.
  • Strengthen the security of read-only ARI credentials.
Chain of evidence and sources2 verified claims

Asterisk içindeki yetki atlatma zafiyeti, salt okunur ARI kimlik bilgileriyle REST-over-WebSocket üzerinden yazma işlemlerine izin verir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Bu zafiyet, isteğe bağlı modül yolu yüklenmesine ve koşullu uzaktan kod yürütülmesine yol açabilir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd
Show the technical text from the sources

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.

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

CWE: CWE-22, CWE-863

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-57200 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1asteriskasterisk View
2certified-asteriskcertified-asterisk View
Total affected vendors: 2|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCVE CNA
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-57200 is associated with the following CWEs:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CWE-863: Common Weakness Enumeration Entry CWE-863

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-57200 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://github.com/asterisk/asterisk/security/advisories/GHSA-wcvv-g26m-wx5cvendor-advisoryhttps://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533vendor-advisoryhttps://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350vendor-advisoryhttps://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6cvendor-advisoryhttps://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4vendor-advisoryhttps://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698avendor-advisoryhttps://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46vendor-advisoryhttps://github.com/asterisk/asterisk/releases/tag/20.20.1vendor-advisoryhttps://github.com/asterisk/asterisk/releases/tag/21.12.3vendor-advisoryhttps://github.com/asterisk/asterisk/releases/tag/22.10.1vendor-advisory

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityHighPrivilegesLowUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

A
asterisk logo
asterisk
C
certified-asterisk logo
certified-asterisk

Weakness Type (CWE & CAPEC)

CWE-22 CWE-863

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CVE-2026-57200 · Asterisk: ARI REST-over-WebSocket read-only…