CVE-2026-52023 Denial of service in n/a
A remote attacker can cause a denial of service in Kamailio via the ims_registrar_pcscf module due to flaws in security-agreement parsing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-52023?
CVE-2026-52023 is a high-severity denial of service vulnerability in n/a, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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()
Which versions are affected by CVE-2026-52023?
It affects 1 product.
Products include Kamailio Kamailio.
How do I fix CVE-2026-52023?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-52023 being exploited?
There is no known exploitation of CVE-2026-52023 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2026-52023, GHSA-3vmm-j973-v9x5, UBUNTU-CVE-2026-52023.