CVE-2020-5420

Gorouter is vulnerable to DoS attack via invalid HTTP responses

HIGH
7.7
CVSS Score
Published: September 3, 2020 at 01:10 AM UTC
Updated: June 17, 2026 at 03:21 AM UTC
3 products affected across 1 vendorCF DeploymentGorouterRouting Release

Using Routing by Cloud Foundry?

Get instant alerts when new vulnerabilities affect Routing - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.7
Exploit prediction
EPSS 1%

Description

Cloud Foundry Routing (Gorouter) versions prior to 0.206.0 allow a malicious developer with "cf push" access to cause denial-of-service to the CF cluster by pushing an app that returns specially crafted HTTP responses that crash the Gorouters.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 13.15.0
Affected range stops below 13.15.0, so it looks safe — our inference, not a vendor statement
v < 0.206.0
Affected range stops below 0.206.0, so it looks safe — our inference, not a vendor statement
v < 0.206.0
Affected range stops below 0.206.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card