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.
Metrics
Affected Vendors & Products
References
History
Mon, 06 Oct 2025 14:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Aiven
Aiven aiven Aiven karapace |
|
Vendors & Products |
Aiven
Aiven aiven Aiven karapace |
Mon, 06 Oct 2025 14:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Fri, 03 Oct 2025 21:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Description | 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. | |
Title | Karapace is vulnerable to Authentication Bypass | |
Weaknesses | CWE-288 CWE-306 |
|
References |
| |
Metrics |
cvssV3_1
|

Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-10-03T21:12:24.471Z
Updated: 2025-10-06T13:19:08.624Z
Reserved: 2025-09-29T20:25:16.180Z
Link: CVE-2025-61673

Updated: 2025-10-06T13:18:54.419Z

Status : Awaiting Analysis
Published: 2025-10-03T22:15:32.213
Modified: 2025-10-06T14:56:47.823
Link: CVE-2025-61673

No data.