CVE-2025-66518 | BDVDB-2026-309115 Detail

ApacheApache Kyuubi

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.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

CWE-27 Path Traversal: 'dir/../../filename'

References#

Exploit#

No public exploit known

History#

Version 12026-01-05Record published in the CVE List.

Published

Published: 2026-01-05
Last modified: 2026-01-05

Vendor information

Vendor: Apache
Product: Apache Kyuubi

All Apache vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 63.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Path Traversal

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 1.6.0 and <= 1.10.2
Fixed
Not stated

Scoring System

CVSS v4.0

8.8 High

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	Present
Privileges Required	Low
User Interaction	Passive
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	Low
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	Low

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).