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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| mosn.io/mosn | go | < 0.23.0 | 0.23.0 |
The vulnerability stems from improper case-sensitive handling of URL paths in JWT authorization checks. The GitHub issue (#1633) demonstrates that requests with case-varied paths (e.g., '/indeX' vs '/index') bypassed authentication. The fix in PR #1637 modified the prefix matching logic to use case-insensitive comparisons when configured, confirming the vulnerability existed in the original case-sensitive Matches function implementation.
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