Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.

INFO

Published Date :

2026-02-06T16:41:43.769Z

Last Modified :

2026-02-06T17:44:20.480Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23738 vulnerability.

Vendors Products
Asterisk
  • Asterisk
Sangoma
  • Asterisk
  • Certified Asterisk
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23738.

URL Resource
https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact