CVE-2026-29190
CVE-2026-29190 is a medium-severity vulnerability in Aiven Karapace with a CVSS 3.x base score of 4.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 4.1)
- EPSS exploit prediction: 0% (29th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10147
- Weakness: CWE-22
- Affected product: Aiven Karapace
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-29190?
- 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.
- How severe is CVE-2026-29190?
- CVE-2026-29190 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-29190 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-29190?
- CVE-2026-29190 affects Aiven Karapace. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-29190?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-29190 have an EU (EUVD) identifier?
- Yes. CVE-2026-29190 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10147.
- When was CVE-2026-29190 published?
- CVE-2026-29190 was published on 2026-03-07 and last updated on 2026-06-17.
References
- https://github.com/Aiven-Open/karapace/releases/tag/6.0.0
- https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq
Affected products (1)
- cpe:2.3:a:aiven:karapace:*:*:*:*:*:*:*:*
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