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CVE-2025-66518

27
FAUCET Score

CVE-2025-66518 is a high-severity vulnerability affecting Apache Kyuubi versions 1.6.0 through 1.10.2, allowing authenticated clients to bypass server-side configuration (kyuubi.session.local.dir.allow.list) and access unauthorized local files. With a CVSS score of 8.8, this flaw presents a significant risk (FAUCET Risk Score: 92/100) due to its low attack complexity and potential for high impact on confidentiality, integrity, and availability. While no active exploits, Metasploit modules, or Nuclei templates are currently reported, and community discussion is minimal, users are strongly advised to upgrade to version 1.10.3 or higher to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.6.0, < 1.10.3CPE matchmatch criteria
cpe:2.3:a:apache:kyuubi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.8HIGH

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
PASSIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
LOW
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 51st percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.kyuubi:kyuubi-server_2.12Fixed in: 1.10.3

Vendor Advisories (1)

mavenGHSA-f8r6-6222-9pvchigh

Apache Kyuubi Server vulnerable to Path Traversal

Jan 5, 2026

References

openwall.com / lists/oss-security/2026/01/05/1
Mailing ListThird Party Advisory
lists.apache.org / thread/xp460bwbyzdhho34ljd4nchyt2fmhodl
Mailing List