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Java CORS reflects Origin header with credentials allowed

Rule ID: vetkit.java.cors.reflected-origin

The request's Origin header is reflected into Access-Control-Allow-Origin while Access-Control-Allow-Credentials is true, so any website can make credentialed cross-origin requests and read the responses.

Last updated:

Suite: Security

java

The request's Origin header is reflected into Access-Control-Allow-Origin while Access-Control-Allow-Credentials is true, so any website can make credentialed cross-origin requests and read the responses.

Category: SECURITY · Engine rule severity: WARNING

How to fix it

Compare the Origin against an explicit allow-list (exact match) before echoing it, or drop Access-Control-Allow-Credentials and answer with a fixed origin.

References

Source: packages/engine/rules/sast/java.yml.

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Generated from shipped rule definitions at build time. Matching is a review signal, not proof of exploitability. “generic” denotes text matching, not complete language or framework coverage. Runtime configuration and available tools affect whether a rule runs.