React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on the client, which would in turn trigger an outbound network request. This is only possible with very specific (and unlikely) application-layer code.
Note that this does not impact an application if it is using Declarative Mode. It only impacts Framework Mode and Data Mode applications that perform manual SSR/hydration. This issue has been fixed in version 7.18.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Shopify React-Router
cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*
|
6.4.0
|
7.18.0
|
References 5
https://github.com/remix-run/react-router/security/advisories/GHSA-337j-9hxr-rh…
https://github.com/remix-run/react-router/security/advisories/GHSA-337j-9hxr-rhxg
https://github.com/remix-run/react-router/pull/15175
https://github.com/remix-run/react-router/pull/15175
https://github.com/remix-run/react-router/commit/9d22943fd46c8ae4b08236425fa354…
https://github.com/remix-run/react-router/commit/9d22943fd46c8ae4b08236425fa3549e10e9ad1a
https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0