CVE-2006-1619
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 · uneditedIBM WebSphere Application Server 4.0.1 through 4.0.3 allows remote attackers to cause a denial of service (application crash) via an HTTP request with a large header.
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 confidenceIBM WebSphere Application Server versions 4.0.1 through 4.0.3 are vulnerable to a denial-of-service attack where remote attackers can crash the application by sending HTTP requests containing abnormally large header values.
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= 4.0.1= 4.0.2= 4.0.3CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 WebSphere Application Server versionCheck the installed IBM WebSphere Application Server version using the versionInfo command or by examining the installation logs and registry files in the WebSphere installation directoryAffected if The version shown is 4.0.1, 4.0.2, or 4.0.3 exactly
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Confirm HTTP servlet channel is enabledInspect the WebSphere configuration files (such as server.xml or plugin-cfg.xml in the config directory) to determine if the HTTP transport channel is enabled and listening for incoming HTTP requestsAffected if HTTP transport is enabled and the server accepts HTTP connections on any port
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Verify network exposure of HTTP listenerReview the WebSphere deployment configuration to determine if the HTTP listener is bound to a network interface accessible to remote attackers rather than localhost onlyAffected if The HTTP listener is bound to a public or untrusted network interface
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Check for upstream header limitingInspect any web server, load balancer, or proxy in front of WebSphere (such as IBM HTTP Server, IHS, or third-party proxies) for configured maximum header size limitsAffected if No HTTP header size limits are configured upstream and oversized headers can reach WebSphere directly
You are affected if you are running WebSphere Application Server version 4.0.1, 4.0.2, or 4.0.3 with HTTP servlet channels enabled and accessible to remote attackers without header size limits configured upstream.
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 dataApply IBM patches for this vulnerability if available, or implement HTTP header size limits at the web server or proxy level to reject oversized requests before they reach WebSphere.
- 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-2006-1619 — 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-2006-1619 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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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