DataHub is an open-source metadata platform. The DataHub frontend acts as a proxy able to forward any REST or GraphQL requests to the backend. The goal of this proxy is to perform authentication if needed and forward HTTP requests to the DataHub Metadata Store (GMS). It has been discovered that the proxy does not adequately construct the URL when forwarding data to GMS, allowing external users to reroute requests from the DataHub Frontend to any arbitrary hosts. As a result attackers may be able to reroute a request from originating from the frontend proxy to any other server and return the result. This vulnerability was discovered and reported by the GitHub Security lab and is tracked as GHSL-2022-076.

DataHub is an open-source metadata platform. Prior to version 0.8.45, the `StatelessTokenService` of the DataHub metadata service (GMS) does not verify the signature of JWT tokens. This allows an attacker to connect to DataHub instances as any user if Metadata Service authentication is enabled. This vulnerability occurs because the `StatelessTokenService` of the Metadata service uses the `parse` method of `io.jsonwebtoken.JwtParser`, which does not perform a verification of the cryptographic token signature. This means that JWTs are accepted regardless of the used algorithm. This issue may lead to an authentication bypass. Version 0.8.45 contains a patch for the issue. There are no known workarounds.

Cogent DataHub before 7.3.10 allows local users to gain privileges by leveraging the user or guest role to modify a file.

Cross-site scripting (XSS) vulnerability in Cogent DataHub before 7.3.5 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Directory traversal vulnerability in Cogent DataHub before 7.3.5 allows remote attackers to read arbitrary files of unspecified types, or cause a web-server denial of service, via a crafted pathname.

Cogent DataHub before 7.3.5 does not use a salt during password hashing, which makes it easier for context-dependent attackers to obtain cleartext passwords via a brute-force attack.

Heap-based buffer overflow in the Web Server in Cogent Real-Time Systems Cogent DataHub before 7.3.5 allows remote attackers to execute arbitrary code via a negative value in the Content-Length field in a request.

GetPermissions.asp in Cogent Real-Time Systems Cogent DataHub before 7.3.5 allows remote attackers to execute arbitrary commands via unspecified vectors.

The DataSim and DataPid demonstration clients in Cogent Real-Time Systems Cogent DataHub before 7.3.0, OPC DataHub before 6.4.22, Cascade DataHub before 6.4.22 on Windows, and DataHub QuickTrend before 7.3.0 allow remote servers to cause a denial of service (incorrect pointer access and client crash) via malformed data in a formatted text command.

Cogent Real-Time Systems Cogent DataHub before 7.3.0, OPC DataHub before 6.4.22, Cascade DataHub before 6.4.22 on Windows, and DataHub QuickTrend before 7.3.0 allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed data in a formatted text command.