CVE-2021-1627 Server-side request forgery in Mulesoft

Critical 9.8 Published 26 Mar 2021 Updated 3 Aug 2024

Attackers can exploit a Server Side Request Forgery flaw in the MuleSoft runtime to access internal resources or bypass security controls.

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-2021-1627?

CVE-2021-1627 is a critical server-side request forgery vulnerability in Mulesoft, published on 26 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MuleSoft is aware of a Server Side Request Forgery vulnerability affecting certain versions of a Mule runtime component that may affect both CloudHub and on-premise customers. This affects: Mule 3.8.x,3.9.x,4.x runtime released before February 2, 2021.

Weakness: CWE-918

Which versions are affected by CVE-2021-1627?

It affects 1 product.

Products include Salesforce Mule.

How do I fix CVE-2021-1627?

No fix has been published for CVE-2021-1627 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2021-1627 being exploited?

There is no known exploitation of CVE-2021-1627 in the wild and no public exploit code.

Sources

Also known as GHSA-979g-7427-r7wv.