Denial of Service Vulnerability in Halo by Halo Dev
CVE-2025-70886

7.5HIGH

Key Information:

Vendor

Halo Dev

Status
Halo
Vendor
CVE Published:
12 February 2026

What is CVE-2025-70886?

A remote attacker can exploit a vulnerability in Halo versions prior to 2.22.4 to orchestrate a denial of service attack. By submitting a specially crafted payload to the public comment submission endpoint, an attacker may disrupt the service, impacting users' ability to engage with the platform. This issue highlights the necessity for robust input validation and security measures to protect against such malicious activities.

References

https://github.com/halo-dev/halo/issues/7890
https://howiehz.top/archives/halo-comment-payload-tweaker
https://github.com/HowieHz/CVE-2025-70886

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.