CVE-2025-31987
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 · uneditedHCL Connections Docs may mishandle validation of certain uploaded documents leading to denial of service due to resource exhaustion.
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 confidenceHCL Connections Docs fails to properly validate certain uploaded documents, allowing specially crafted files to consume excessive resources. This validation failure enables attackers to trigger resource exhaustion (likely memory or CPU) by uploading malformed documents, resulting in denial of service.
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= 2.0.2CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 installed HCL Connections Docs versionCheck the product version through the HCL Connections administration console, or query the Docs component version using the HCL Docs administration API (typically available at /docs/admin/api/v1/version or through the IBM/HCL product information files in the installation directory)Affected if The installed version is exactly 2.0.2 - this is the only affected version listed for this CVE
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Verify Docs upload functionality is enabledConfirm that the document upload/upload API endpoints are accessible in your deployment. Check the HCL Connections configuration files (typically in the Docs configuration directory) for enabled upload handlers and the status of the 'upload' or 'fileUpload' moduleAffected if Document upload functionality is enabled and exposed to users - this is required for the vulnerability to be exploitable
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Review current file upload limitsExamine the HCL Connections Docs configuration for upload size limits and resource constraints. Look for settings related to maxUploadSize, uploadTimeout, or resource limits in the Docs configuration files (typically in the config directory or through the administration UI)Affected if No size limits are configured or limits are set excessively high, allowing large malformed files to be processed
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Check for resource consumption monitoringReview server logs and monitoring systems for unusual resource consumption patterns associated with document processing. Look for spikes in CPU or memory during upload operations that may indicate exploitation attemptsAffected if Unexplained high resource consumption is observed during document upload operations without corresponding legitimate load
You are affected if your HCL Connections Docs installation is exactly version 2.0.2 and document upload functionality is enabled, as this is the sole version and configuration state for this CVE.
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.
From vendor dataImplement proper validation of uploaded documents including file type verification, size limits, and parsing validation before processing. Consider adding resource consumption limits and timeouts for document processing operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-31987 — 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-2025-31987 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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