LinkisApplication · Apache
CVE-2023-27987
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 <=1.3.1, due to the default token generated by Linkis Gateway deployment being too simple, it is easy for attackers to obtain the default token for the attack. Generation rules should add random values. We recommend users upgrade the version of Linkis to version 1.3.2 And modify the default token value. You can refer to Token authorization[1] https://linkis.apache.org/docs/latest/auth/token https://linkis.apache.org/docs/latest/auth/token
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 confidenceApache Linkis versions 1.3.1 and below generate default authentication tokens during Gateway deployment that are overly simple and predictable. Attackers can easily discover these weak default tokens and use them to authenticate to the system, potentially gaining unauthorized access to the Linkis compute governance platform.
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
<= 1.3.1CVSS 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
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 Linkis versionCheck the installed version of Apache Linkis (via version file, pom.xml, or CLI if available) and compare it to the affected range (<= 1.3.1)Affected if The installed version is 1.3.1 or lower
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Locate token configuration filesFind the token or authentication configuration files in the Linkis deployment (typically in the conf directory)Affected if Token configuration files exist in the deployment
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Inspect default tokensExamine the token configuration for values that appear to be default, simple, or predictable (such as common words, short strings, or sequential patterns)Affected if Tokens are set to simple, default, or easily guessable values
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Check token usage statusReview whether any default tokens are still active or enabled in the systemAffected if Default weak tokens are still active and in use
A user is affected if they are running Apache Linkis version 1.3.1 or lower and have default or weak tokens still configured and active in the system.
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 · scopedUpgrade to Apache Linkis version 1.3.2 and regenerate all default tokens with strong, random values following the official Token authorization documentation.
1.3.2
- Upgrade Apache Linkis to version 1.3.2 or later
- After upgrading, modify the default token value by following the Token authorization guide at https://linkis.apache.org/docs/latest/auth/token
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Linkis
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-27987 — 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-2023-27987 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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- Version or environment caveats, and links to real fixes
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