Vulnerability · Published Mar 7, 2026 · Assigned by GitHub_M

CVE-2026-29190Karapace: Path Traversal in Backup Reader

Medium 4.1

In plain English

A medium-severity path traversal in karapace from Aiven-Open. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)4.1Medium

Exploit odds (30 days)0.4%top 62.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Aiven-Open	karapace	< 6.0.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

References

https://github.com/Aiven-Open/karapace/security/advisories/GHSA-rw4j-p3jg-4fxq x_refsource_CONFIRM
https://github.com/Aiven-Open/karapace/releases/tag/6.0.0 x_refsource_MISC