CVE-2025-70886 Denial of service in n/a

High 7.5 Published 12 Feb 2026 Updated 12 Feb 2026

Remote attackers can cause denial of service in Halo by sending crafted payloads to the public comment submission endpoint.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-70886?

CVE-2025-70886 is a high-severity denial of service vulnerability in n/a, published on 12 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in halo v.2.22.4 and before allows a remote attacker to cause a denial of service via a crafted payload to the public comment submission endpoint

Weakness: CWE-400

Which versions are affected by CVE-2025-70886?

It affects 1 product.

Products include Halo Halo.

How do I fix CVE-2025-70886?

No fix has been published for CVE-2025-70886 yet. Limit exposure of the affected software until one is available.

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-2025-70886 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70886 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-7p49-g593-x646.