CVE-2021-43577
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 · uneditedJenkins OWASP Dependency-Check Plugin 5.1.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
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 confidenceThe Jenkins OWASP Dependency-Check Plugin versions 5.1.1 and earlier fails to configure its XML parser securely, allowing XML External Entity (XXE) attacks. An attacker could craft malicious XML input to potentially read local files on the Jenkins controller or perform server-side request forgery (SSRF) attacks.
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<= 5.1.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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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Verify OWASP Dependency-Check plugin is installedLocate the plugin in the Jenkins plugins directory (typically $JENKINS_HOME/plugins/) or access Jenkins /pluginManager/installed to list installed pluginsAffected if The OWASP Dependency-Check plugin appears in the installed plugins list
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Determine the installed plugin versionCheck the plugin's manifest file, .jpi file properties, or view the version displayed in Jenkins Plugin Manager under the OWASP Dependency-Check entryAffected if The displayed version is 5.1.1 or any version lower than 5.1.1
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Confirm plugin is in active useReview Jenkins job configurations or build history to identify any jobs that utilize the OWASP Dependency-Check plugin for builds or scansAffected if The plugin is actively used in one or more Jenkins jobs or build pipelines
If the OWASP Dependency-Check plugin version 5.1.1 or earlier is installed and actively used in Jenkins, the environment is vulnerable to XXE attacks via the plugin's insecure XML parser configuration.
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 dataUpgrade the plugin to a version that properly configures the XML parser to disable external entity processing. If no upgrade is available, configure the XML parser to disable DTD processing and external entities programmatically.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-43577 — 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-2021-43577 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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