What is CVE-2025-66518?

CVE-2025-66518 is a high-severity path traversal vulnerability in org.apache.kyuubi:kyuubi-server_2.12 (maven), affecting versions >= 1.6.0, < 1.10.3. It is fixed in 1.10.3. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.

Which versions of org.apache.kyuubi:kyuubi-server_2.12 are affected by CVE-2025-66518?

org.apache.kyuubi:kyuubi-server_2.12 (maven) versions >= 1.6.0, < 1.10.3 is affected.

Is there a fix for CVE-2025-66518?

Yes. CVE-2025-66518 is fixed in 1.10.3. Upgrade to this version or later.

Is CVE-2025-66518 exploitable, and should I be worried?

Whether CVE-2025-66518 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2025-66518 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2025-66518

Q: Which versions of org.apache.kyuubi:kyuubi-server_2.12 are affected by CVE-2025-66518?

org.apache.kyuubi:kyuubi-server_2.12 (maven) versions >= 1.6.0, < 1.10.3 is affected.

Q: Is there a fix for CVE-2025-66518?

Yes. CVE-2025-66518 is fixed in 1.10.3. Upgrade to this version or later.

Q: Is CVE-2025-66518 exploitable, and should I be worried?

Whether CVE-2025-66518 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2025-66518 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2025-66518?

Upgrade org.apache.kyuubi:kyuubi-server_2.12 to 1.10.3 or later.

Summary

Apache Kyuubi Server vulnerable to Path Traversal

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

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

Affected versions

org.apache.kyuubi:kyuubi-server_2.12 (>= 1.6.0, < 1.10.3)

Security releases

org.apache.kyuubi:kyuubi-server_2.12 → 1.10.3 (maven)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade org.apache.kyuubi:kyuubi-server_2.12 to 1.10.3 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2025-66518? CVE-2025-66518 is a high-severity path traversal vulnerability in org.apache.kyuubi:kyuubi-server_2.12 (maven), affecting versions >= 1.6.0, < 1.10.3. It is fixed in 1.10.3. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
Which versions of org.apache.kyuubi:kyuubi-server_2.12 are affected by CVE-2025-66518? org.apache.kyuubi:kyuubi-server_2.12 (maven) versions >= 1.6.0, < 1.10.3 is affected.
Is there a fix for CVE-2025-66518? Yes. CVE-2025-66518 is fixed in 1.10.3. Upgrade to this version or later.
Is CVE-2025-66518 exploitable, and should I be worried? Whether CVE-2025-66518 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2025-66518 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2025-66518? Upgrade org.apache.kyuubi:kyuubi-server_2.12 to 1.10.3 or later.