CVE-2026-52680
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
Apache Kyuubi versions 1.7.0 through 1.11.1 are vulnerable to path traversal during REST batch multipart upload handling. An attacker can provide path traversal sequences in the filename, allowing content to be written outside the intended directory.
Risk Assessment
A remote attacker can write controlled content anywhere on the filesystem, potentially leading to data integrity compromise or privilege escalation.
Recommendation
It is recommended to upgrade Apache Kyuubi to version 1.12.0, which fixes the issue.
Other vulnerabilities in Apache Kyuubi
See all- CVE-2025-66518High
Any client with access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass the server-side config kyuubi.session.local.dir.allow.list and use local files not listed in the config. This issue affects Apache Kyuubi from 1.6.0 through 1.10.2.
- CVE-2026-62391High
The security fix for CVE-2025-66518 in Apache Kyuubi is incomplete. Any client with access to the Kyuubi server via frontend protocols can bypass the server-side config kyuubi.session.local.dir.allowlist using unprefixed Spark config aliases. This affects versions from 1.6.0 before 1.12.0.
- CVE-2026-23904High
Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote attacker with network access can cause SSRF or open-proxy behavior.
Original NVD description (English source)
Apache Kyuubi REST batch multipart upload handling uses the client-supplied multipart filename when creating a temporary uploaded resource. A remote attacker who can access the REST batch upload endpoint can provide path traversal sequences in the filename and cause the Kyuubi server process to write controlled content outside the intended upload directory, subject to filesystem permissions. This issue affects Apache Kyuubi: from 1.7.0 through 1.11.1. Users are recommended to upgrade to version 1.12.0, which fixes the issue.