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CVE-2025-66518

Apache Kyuubi: Unauthorized directory access due to missing path normalization

Published: Jan 5, 2026Updated: Jan 27, 2026 Sources: CVE List NVD GHSA BDUCWE-27
8.8HIGH
NVD MITRE
EPSS Score
0.9%
Top 44.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allow.list and use local files which are not listed in the config. This issue affects Apache Kyuubi: from 1.6.0 through 1.10.2. Users are recommended to upgrade to version 1.10.3 or upper, which fixes the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-27CWE-22

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache KyuubiOn-premWeb App
Web & CMS Plugins
KyuubiOn-premDatabase
Databases / nosql
apache
oss-project·USaka apache http server, apache httpd
kyuubiOn-prem
Databases / relational
Maven
package-ecosystem
org.apache.kyuubi:kyuubi-server_2.12
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://lists.apache.org/thread/xp460bwbyzdhho34ljd4nchyt2fmhodl
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/01/05/1
openwall.com
https://nvd.nist.gov/vuln/detail/CVE-2025-66518
nvd.nist.gov
and 1 more references View all →

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