LinkisApplication · Apache
CVE-2024-39928
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 · uneditedIn Apache Linkis <= 1.5.0, a Random string security vulnerability in Spark EngineConn, random string generated by the Token when starting Py4j uses the Commons Lang's RandomStringUtils. Users are recommended to upgrade to version 1.6.0, which fixes this 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 · moderate confidenceApache Linkis versions 1.5.0 and below use the Commons Lang RandomStringUtils class to generate random tokens for Py4j authentication during Spark EngineConn startup. RandomStringUtils produces cryptographically weak, predictable random strings that could allow remote attackers to guess or brute-force tokens and potentially execute code via the Py4j gateway.
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
LinkisApplication
>= 1.3.0, < 1.6.0CVSS 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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Check Apache Linkis installed versionRun 'linkis-version' or check the version file in the Linkis installation directory (usually in lib/linkis-files/ or the RELEASE file)Affected if The installed version is >= 1.3.0 and < 1.6.0
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Verify Py4j is enabled for Spark EngineConnInspect the Linkis configuration file (linkis-cg-spark-core或者linkis-cg-engineplugin-config) or check for py4j configuration in the deploy/conf/ configuration directoryAffected if Py4j authentication is enabled for Spark EngineConn (this is the vulnerable configuration path)
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Inspect Spark EngineConn logs for token generationExamine the EngineConn logs in the logs/ directory (typically linkis-cg-engineplugin/spark/engineConnLogs/) for messages related to Py4j gateway startup and token generationAffected if Logs show RandomStringUtils being used or mention Py4j tokens generated during startup (indicates the vulnerable code path is being executed)
A user is affected if their installed Apache Linkis version is between 1.3.0 and 1.5.x inclusive AND Py4j authentication is enabled for Spark EngineConn, which causes predictable random tokens to be generated during Spark job submission.
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 · scoped1.6.0
Upgrade to Apache Linkis 1.6.0 which replaces the insecure RandomStringUtils with a cryptographically secure random string generation mechanism.
1.6.0
- Download Apache Linkis version 1.6.0 from the official Apache distribution (downloads.apache.org)
- Review the official upgrade documentation for your current version to 1.6.0
- Execute the upgrade following the documented migration steps
- Restart the Linkis services to apply the changes
- Verify the Spark EngineConn functionality and confirm the RandomStringUtils vulnerability is resolved
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Linkis
Scoped from the published advisory
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,792.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-39928 — 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-2024-39928 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
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