Authentication Persistence Issue in FreeSWITCH mod_verto Component
CVE-2026-49848

4.3MEDIUM

Key Information:

Vendor

Signalwire

Status
Freeswitch
Vendor
CVE Published:
9 June 2026

What is CVE-2026-49848?

FreeSWITCH, a leading Software Defined Telecom Stack solution, has identified a vulnerability in its mod_verto component prior to version 1.11.1. This flaw occurs when user-supplied variables are improperly handled during the authentication process, allowing failed password attempts to leave remnants in the connection state. Consequently, these variables can affect subsequent successful login attempts over the same WebSocket connection, resulting in potential unauthorized access. The issue has been addressed in version 1.11.1, providing enhanced security measures.

Affected Version(s)

freeswitch < 1.11.1

References

https://github.com/signalwire/freeswitch/security/advisor...
x_refsource_CONFIRM
https://github.com/signalwire/freeswitch/releases/tag/v1....
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.