CVE-2026-8359
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 · uneditedWhen processing a request with a URL path starting with /status or /sysinfo, WOSHttpStatusModule.dll is to be loaded to handle such URL patterns. The WOSBin_LoadHttpModule function in the dll would be called to set up a "module" object for that module. However, WOSHttpStatusModule.dll is not present in the installation. As a result, a function pointer to WOSBin_LoadHttpModule (which would have been in the export table in WOSHttpStatusModule.dll) is set to NULL, resulting in calling a function at address 0.
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 confidenceA NULL pointer dereference vulnerability exists where requests to URLs starting with /status or /sysinfo trigger the loading of WOSHttpStatusModule.dll, which is missing from the installation. The code attempts to call WOSBin_LoadHttpModule at address 0 (NULL), causing a denial of service condition.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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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Verify WOSHttpStatusModule.dll existsSearch the installation directory for the file WOSHttpStatusModule.dll (e.g., using 'find' on Linux or checking the bin/modules directory on Windows)Affected if The file WOSHttpStatusModule.dll is missing from the installation directory
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Confirm web server module configurationInspect the web server configuration files to verify that WOSHttpStatusModule is referenced or loadedAffected if WOSHttpStatusModule is configured to load but the corresponding DLL file is missing
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Test /status endpoint accessibilitySend an HTTP request to a /status endpoint on the server and observe the responseAffected if The request triggers a crash or NULL pointer dereference error
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Test /sysinfo endpoint accessibilitySend an HTTP request to a /sysinfo endpoint on the server and observe the responseAffected if The request triggers a crash or NULL pointer dereference error
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Check for crash logs or error logsReview server error logs for NULL pointer dereference errors or crashes mentioning WOSBin_LoadHttpModuleAffected if Logs contain errors indicating WOSHttpStatusModule failed to load or NULL pointer dereference at address 0
The environment is affected if WOSHttpStatusModule.dll is missing from the installation and the /status or /sysinfo endpoints are accessible, causing a denial of service when requested.
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 dataDeploy the missing WOSHttpStatusModule.dll file or implement proper error handling to prevent NULL pointer dereference when the module is unavailable.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-8359 — 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-2026-8359 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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