CVE-2025-61733: Kylin Authentication Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-mr9j-4j48-xcm2
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CVSS 7.5
CWE-288
Published
Advisory Summary

CVE-2025-61733 is a HIGH (CVSS 7.5) authentication bypass vulnerability (CWE-288: Authentication Bypass Using an Alternate Path or Channel) affecting Kylin libraries in the Maven ecosystem. The issue involves apache kylin authentication bypass vulnerability. Remediation is available by upgrading affected packages to version 5.0.3.

CVE-2025-61733 at a Glance

CVE Identifier CVE-2025-61733
GHSA Identifier GHSA-mr9j-4j48-xcm2
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-288: Authentication Bypass Using an Alternate Path or Channel
Affected Product Kylin
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-61733

To remediate this vulnerability, upgrade all affected Kylin dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.kylin:kylin fixed: 5.0.3 
<dependency>
    <groupId>org.apache.kylin</groupId>
    <artifactId>kylin</artifactId>
    <version>5.0.3</version>
</dependency>
org.apache.kylin:kylin-core-common fixed: 5.0.3 
<dependency>
    <groupId>org.apache.kylin</groupId>
    <artifactId>kylin-core-common</artifactId>
    <version>5.0.3</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.kylin

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2025-61733, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.kylin

Analyze the terminal output to locate any version of Kylin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.0.3), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.kylin command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-288: Authentication Bypass Using an Alternate Path or Channel, where the product requires authentication, but the product has an alternate path or channel that does not require authentication. In Kylin, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Kylin. This issue affects Apache Kylin: from 4.0.0 through 5.0.2. Users are recommended to upgrade to version 5.0.3, which fixes the issue.

CVE-2025-61733 Affected Kylin Versions

2 component(s)
Fixed Versions:
5.0.3
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.kylin:kylin
maven/org.apache.kylin/kylin
Maven
≥ 4.0.0
< 5.0.3
5.0.3
org.apache.kylin:kylin-core-common
maven/org.apache.kylin/kylin-core-common
Maven
≥ 4.0.0
< 5.0.3
5.0.3

References

NVD — CVE-2025-61733 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61733
Kylin Source Repository REPOSITORY
https://github.com/apache/kylin/pull/2336
Security Fix Commit FIX COMMIT
https://github.com/apache/kylin/commit/8b2cb8c71bd9885d70dad4f1a9822e38d9949b8c
Kylin Source Repository REPOSITORY
https://github.com/apache/kylin
issues.apache.org/jira/browse/kylin-6... WEB
https://issues.apache.org/jira/browse/KYLIN-6081
lists.apache.org/thread/8wmcffly6gp5... WEB
https://lists.apache.org/thread/8wmcffly6gp50nmfw8j4w3hlmv843yo0
Kylin Security Information SECURITY
http://www.openwall.com/lists/oss-security/2025/09/30/7

Frequently Asked Questions

What is CVE-2025-61733?
CVE-2025-61733 is a security vulnerability in Kylin involving Apache Kylin Authentication Bypass Vulnerability under CWE-288: Authentication Bypass Using an Alternate Path or Channel.
Which Kylin versions are affected?
Affected versions include releases prior to 5.0.3 across affected packages: org.apache.kylin:kylin, org.apache.kylin:kylin-core-common.
What version fixes CVE-2025-61733?
Upgrading to 5.0.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is kylin affected?
Yes, org.apache.kylin:kylin is affected in releases prior to 5.0.3. Upgrade your dependency to 5.0.3 or later.
Is kylin-core-common affected?
Yes, org.apache.kylin:kylin-core-common is affected in releases prior to 5.0.3. Upgrade your dependency to 5.0.3 or later.
What is the CVSS score of CVE-2025-61733?
CVE-2025-61733 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2025-61733?
CVE-2025-61733 is classified under CWE-288: Authentication Bypass Using an Alternate Path or Channel (The product requires authentication, but the product has an alternate path or channel that does not require authentication.).
How can I check Maven dependencies for CVE-2025-61733?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.kylin'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mr9j-4j48-xcm2",
  "modified" : "2025-11-05T20:47:37Z",
  "published" : "2025-10-02T12:31:06Z",
  "aliases" : [ "CVE-2025-61733" ],
  "summary" : "Apache Kylin Authentication Bypass Vulnerability",
  "details" : "Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Kylin.\n\nThis issue affects Apache Kylin: from 4.0.0 through 5.0.2.\n\nUsers are recommended to upgrade to version 5.0.3, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.kylin:kylin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "5.0.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.kylin:kylin-core-common"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "5.0.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-61733"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/kylin/pull/2336"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/kylin/commit/8b2cb8c71bd9885d70dad4f1a9822e38d9949b8c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/kylin"
  }, {
    "type" : "WEB",
    "url" : "https://issues.apache.org/jira/browse/KYLIN-6081"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/8wmcffly6gp50nmfw8j4w3hlmv843yo0"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2025/09/30/7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-288" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-02T21:07:54Z",
    "nvd_published_at" : "2025-10-02T10:15:39Z"
  }
}