KylinApplication · Apache
CVE-2025-61733
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAuthentication 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceAuthentication bypass vulnerability in Apache Kylin allows attackers to circumvent authentication mechanisms through an alternate path or channel. This affects versions 4.0.0 through 5.0.2, potentially enabling unauthorized access to the system without valid credentials.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
KylinApplication
>= 4.0.0, < 5.0.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Apache Kylin installationLocate the Kylin installation directory and find the version file. Common locations include the 'kylin' home directory or check the build properties file for the version string.Affected if The installed version is 4.0.0 through 5.0.2 (>= 4.0.0 and < 5.0.3)
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Retrieve version from command lineRun the Kylin version command if available, such as 'kylin.sh version' from the bin directory, or inspect the JAR/WAR file metadata if deployed in a web container.Affected if The version command output shows a version in the 4.0.x or 5.0.0-5.0.2 range
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Check if Kylin web UI is accessibleAttempt to access the Kylin web interface (typically on port 7070 or 8080) and observe whether authentication is required or if an alternate channel bypasses the login page.Affected if The web interface is reachable and authentication can be circumvented through an alternate path or channel
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Review authentication configurationExamine the Kylin configuration files (kylin.properties or kylin-conf.xml) for authentication settings and any exposed endpoints that may not require authentication.Affected if Configuration shows authentication is enabled but alternate unauthenticated paths exist
You are affected if your Apache Kylin version is 4.0.0 through 5.0.2 and the authentication bypass can be exploited in your environment.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped5.0.3
Upgrade Apache Kylin to version 5.0.3 or later to resolve the authentication bypass vulnerability.
5.0.3
- 1. Backup your current Kylin installation, configuration files, and database/data directories
- 2. Stop the Kylin service gracefully
- 3. Download Apache Kylin version 5.0.3 from the official Apache download source
- 4. Install or extract version 5.0.3, preserving your configuration files
- 5. Review and apply any necessary configuration adjustments for version 5.0.3
- 6. Start the Kylin service
- 7. Verify the service is running and accessible
- 8. Test authentication functionality to confirm the vulnerability is resolved
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Kylin
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-61733 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-61733 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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