CVE-2025-52636
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 AION is affected by a vulnerability related to the handling of upload size limits. Improper control or validation of upload sizes may allow excessive resource consumption, which could potentially lead to service degradation or denial-of-service conditions under certain scenarios.
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 AION fails to properly validate or enforce upload size limits, allowing attackers to upload excessively large files that consume excessive server resources. This improper input validation can lead to resource exhaustion and potential denial-of-service conditions.
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>= 2.0.0, < 2.1.2CVSS 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.
-
Determine installed HCL AION versionLocate the AION installation directory and check the version file or use the product's version command. Common locations include the installation root directory or check product documentation for version retrieval method.Affected if Version is 2.0.0 through 2.1.1 (inclusive) - falls within >= 2.0.0 and < 2.1.2 range
-
Identify if file upload endpoints are exposedReview web server configuration or API documentation to determine if file upload functionality is accessible. Check for upload-related endpoints or modules.Affected if File upload endpoints are accessible and the version falls within the affected range
-
Check current upload size configurationExamine the application configuration files or web server settings for upload-related parameters. Look for file size limit settings in configuration files.Affected if No upload size limit is configured or the limit is set to an excessively large value, and version is within affected range
Environment is affected if HCL AION version is 2.0.0 or higher but lower than 2.1.2 AND file upload functionality is enabled with no or overly permissive size limits configured.
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 · scoped2.1.2
Implement and enforce strict upload size limits on all file upload endpoints, validate file sizes before processing, and implement resource quotas or throttling to prevent excessive resource consumption.
2.1.2
- 1. Identify the current installed version of HCL AION by checking the application version or configuration files
- 2. If the current version is >= 2.0.0 and < 2.1.2, plan for upgrade to version 2.1.2
- 3. Review HCL AION 2.1.2 release notes and upgrade documentation from support.hcl-software.com for specific upgrade procedures
- 4. Perform a full backup of the current AION installation including configuration and data directories
- 5. Execute the upgrade to version 2.1.2 following the official upgrade documentation
- 6. Verify the upgrade was successful by confirming the new version number
- 7. Test that upload functionality works correctly with proper size limits enforced
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-52636 — 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-2025-52636 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data