CVE-2026-52680CWE-22CWE-73path-traversal

CVE-2026-52680

Critical · published July 30, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
65.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01110 · 65.7th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-73 · External Control of File Name or Path
Published
2026-07-30T20:17Z
Affected products (1)
ProductVersionsFixed in
apache/kyuubi≥ 1.7.0, < 1.12.01.12.0
References (2)
https://lists.apache.org/thread/b0qx2v8k5v4rrqsh53pb146t7so0lmrk · [email protected]http://www.openwall.com/lists/oss-security/2026/07/30/5 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 30 JUL 16:07Z
    Apache Kyuubi: REST batch multipart upload path traversal allows controlled file write
    cvelistv5