Vulnerability Monitor

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CVE-2026-23738


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.


Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.5, indicating it requires adjacent network access with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 2 products from sangoma, from sangoma organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2026-02-06T17:16:26.000

Last Modified

2026-02-18T18:42:48.877

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 3.5 (LOW)

Weaknesses
  • Type: Primary
    CWE-79

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application sangoma asterisk ≤ 20.18.2 Yes
Application sangoma asterisk ≤ 21.12.1 Yes
Application sangoma asterisk ≤ 22.8.2 Yes
Application sangoma asterisk < 23.2.2 Yes
Application sangoma certified_asterisk ≤ 18.9 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes
Application sangoma certified_asterisk 20.7 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sangoma's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.