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CVE-2025-61673

🔴 HIGH

Karapace is an open-source implementation of Kafka REST and Schema Registry. Versions 5.0.0 and 5.0.1 contain an authentication bypass vulnerability when configured to use OAuth 2.0 Bearer Token authe...

Published
Oct 03, 2025
Last Modified
Oct 06, 2025
Views
3
Bookmarks
0

Description

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Karapace is an open-source implementation of Kafka REST and Schema Registry. Versions 5.0.0 and 5.0.1 contain an authentication bypass vulnerability when configured to use OAuth 2.0 Bearer Token authentication. If a request is sent without an Authorization header, the token validation logic is skipped entirely, allowing an unauthenticated user to read and write to Schema Registry endpoints that should otherwise be protected. This effectively renders the OAuth authentication mechanism ineffective. This issue is fixed in version 5.0.2.

CVSS Scores

CVSS 3.1 8.6
8.6
HIGH
CVSS 2.0 8.6

References

github.com github.com github.com

Additional Information

Source
security-advisories@github.com
State
Awaiting analysis

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