CVE-2021-44725
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 · uneditedKNIME Server before 4.13.4 allows directory traversal in a request for a client profile.
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 confidenceKNIME Server before 4.13.4 contains a directory traversal vulnerability in client profile request handling. Attackers can use path traversal sequences (e.g., ../) in profile requests to access files outside the intended web root directory.
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< 4.13.4CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 KNIME Server versionLocate the KNIME Server installation and check its version - typically found in server startup logs, the administration web interface, or a version file in the installation directory. Compare the installed version to the 4.13.4 reference version.Affected if The installed version is any version prior to 4.13.4 (e.g., 4.13.3, 4.13.0, 4.12.x, earlier releases).
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Verify web client profile feature is accessibleConfirm that the KNIME Server web client interface is enabled and accessible, as the vulnerability exists in client profile request handling.Affected if The KNIME Server web interface and client profile functionality are exposed and reachable.
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Check for external or untrusted access to the web interfaceReview network access controls or firewall rules to determine if the KNIME Server web endpoint can be reached from untrusted networks or the internet.Affected if The web interface is accessible from untrusted networks, allowing external attackers to send malicious profile requests.
You are affected if KNIME Server version is below 4.13.4 AND the web client profile feature is accessible to the attacker.
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 · scoped4.13.4
Upgrade KNIME Server to version 4.13.4 or later. If immediate upgrade is not possible, implement input validation to reject requests containing path traversal sequences in client profile parameters.
KNIME Server 4.13.4
- Back up the current KNIME Server installation, including all workflows, configurations, and data
- Stop the KNIME Server service
- Download KNIME Server version 4.13.4 or later from the official KNIME download portal
- Consult the official KNIME Server upgrade documentation (docs.knime.com) for version-specific upgrade procedures
- Install KNIME Server 4.13.4 following the standard upgrade path for your deployment method (installer or manual deployment)
- Start the KNIME Server service
- Verify the server is running correctly and all workflows are accessible
- Confirm the directory traversal vulnerability is resolved by testing that client profile requests cannot access files outside the intended directory
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-44725 — 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-2021-44725 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