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4 vulnerabilities found for karapace by Aiven-Open
CVE-2026-29190 (GCVE-0-2026-29190)
Vulnerability from nvd – Published: 2026-03-07 15:16 – Updated: 2026-03-09 18:27
VLAI
Title
Karapace: Path Traversal in Backup Reader
Summary
Karapace is an open-source implementation of Kafka REST and Schema Registry. Prior to version 6.0.0, there is a Path Traversal vulnerability in the backup reader (backup/backends/v3/backend.py). If a malicious backup file is provided to Karapace, an attacker may exploit insufficient path validation to perform arbitrary file read on the system where Karapace is running. The issue affects deployments that use the backup/restore functionality and process backups from untrusted sources. The impact depends on the file system permissions of the Karapace process. This issue has been patched in version 6.0.0.
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Aiven-Open/karapace/security/a… | x_refsource_CONFIRM |
| https://github.com/Aiven-Open/karapace/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aiven-Open | karapace |
Affected:
< 6.0.0
|
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CVE-2025-61673 (GCVE-0-2025-61673)
Vulnerability from nvd – Published: 2025-10-03 21:12 – Updated: 2025-10-06 13:19
VLAI
Title
Karapace is vulnerable to Authentication Bypass
Summary
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.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Aiven-Open/karapace/security/a… | x_refsource_CONFIRM |
| https://github.com/Aiven-Open/karapace/pull/1143/… | x_refsource_MISC |
| https://github.com/Aiven-Open/karapace/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aiven-Open | karapace |
Affected:
>= 5.0.0, < 5.0.2
|
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CVE-2026-29190 (GCVE-0-2026-29190)
Vulnerability from cvelistv5 – Published: 2026-03-07 15:16 – Updated: 2026-03-09 18:27
VLAI
Title
Karapace: Path Traversal in Backup Reader
Summary
Karapace is an open-source implementation of Kafka REST and Schema Registry. Prior to version 6.0.0, there is a Path Traversal vulnerability in the backup reader (backup/backends/v3/backend.py). If a malicious backup file is provided to Karapace, an attacker may exploit insufficient path validation to perform arbitrary file read on the system where Karapace is running. The issue affects deployments that use the backup/restore functionality and process backups from untrusted sources. The impact depends on the file system permissions of the Karapace process. This issue has been patched in version 6.0.0.
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Aiven-Open/karapace/security/a… | x_refsource_CONFIRM |
| https://github.com/Aiven-Open/karapace/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aiven-Open | karapace |
Affected:
< 6.0.0
|
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CVE-2025-61673 (GCVE-0-2025-61673)
Vulnerability from cvelistv5 – Published: 2025-10-03 21:12 – Updated: 2025-10-06 13:19
VLAI
Title
Karapace is vulnerable to Authentication Bypass
Summary
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.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Aiven-Open/karapace/security/a… | x_refsource_CONFIRM |
| https://github.com/Aiven-Open/karapace/pull/1143/… | x_refsource_MISC |
| https://github.com/Aiven-Open/karapace/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aiven-Open | karapace |
Affected:
>= 5.0.0, < 5.0.2
|
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