---
id: CVE-2026-52023
title: >-
  An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a
  denial of service via the ims_registrar_pcscf module, specifically the
  pcscf_save_pending/save_pending path and security-agreement parsing in
  sec_agree.c:parse_s…
summary: >-
  An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a
  denial of service via the ims_registrar_pcscf module, specifically the
  pcscf_save_pending/save_pending path and security-agreement parsing in
  sec_agree.c:parse_s…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-415
  - CWE-400
vendor: kamailio
product: kamailio
affected:
  - kamailio <= 6.1.1
published: '2026-09-01'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T19:08:17.017'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52023'
references:
  - url: >-
      https://github.com/kamailio/kamailio/commit/722c06b3efc53ccb369ce812c685c7d069508187
    label: cve@mitre.org
  - url: 'https://github.com/kamailio/kamailio/issues/4671'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00331
epssPercentile: 0.26498
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-08T19:09:31.387015Z'
ingestedAt: '2026-09-08T20:10:03.226Z'
---

## Overview

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the ims_registrar_pcscf module, specifically the pcscf_save_pending/save_pending path and security-agreement parsing in sec_agree.c:parse_sec_agree()

## Affected

- `kamailio <= 6.1.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.