CVE-2025-61673HIGH 8.6EPSS p29.2%
CVE-2025-61673CVE-2025-61673
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.
Scoring
| CVSS 3.1 | 8.6 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
| EPSS | 0.38% probability of exploitation · percentile 29.2% · 2026-06-19T12:03:05Z |
| Published | 2025-10-03 |
| Last modified | 2026-04-15 |
Underlying weaknesses· 2
References
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Authentication Bypass Using an Alternate Path or Channelcwe-288 | 0% | live |
| Weakness | Missing Authentication for Critical Functioncwe-306 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.