Karapace is vulnerable to Authentication Bypass
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Aiven-Open | karapace | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Aiven | Aiven | — |
| Aiven | Karapace | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-32431 | 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. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.394% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Aiven
Aiven aiven Aiven karapace |
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| Vendors & Products |
Aiven
Aiven aiven Aiven karapace |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| 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 |
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| References |
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| Metrics |
cvssV3_1
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