CVE-2026-8651 IPv6 Loopback Spoof via Trusted Host Header Bypasses Origin Check in MOVEit Transfer

Low 3.7 Published 8 Jul 2026 Updated 9 Jul 2026

Attackers can bypass origin checks by spoofing IPv6 loopback addresses via the Host header, leading to limited authentication bypass in MOVEit Transfer.

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-2026-8651?

CVE-2026-8651 is a low-severity authentication bypass vulnerability in Progress MOVEit Transfer, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Limited authentication bypass by spoofing vulnerability in Progress MOVEit Transfer (HTTPS module).

This issue affects MOVEit Transfer: before 2025.0.7, from 2025.1.0 before 2025.1.3.

Weakness: CWE-290

Which versions are affected by CVE-2026-8651?

It affects 1 product.

Products include Progress Moveit Transfer.

How do I fix CVE-2026-8651?

No fix has been published for CVE-2026-8651 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-8651 being exploited?

There is no known exploitation of CVE-2026-8651 in the wild and no public exploit code.

Sources

Also known as GHSA-rwjf-g383-jc9c.