CVE-2021-22501
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 · uneditedImproper Restriction of XML External Entity Reference vulnerability in OpenText™ Operations Bridge Manager allows Input Data Manipulation. The vulnerability could be exploited to confidential information This issue affects Operations Bridge Manager: 2017.05, 2017.11, 2018.05, 2018.11, 2019.05, 2019.11, 2020.05, 2020.10.
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 confidenceOpenText Operations Bridge Manager contains an Improper Restriction of XML External Entity Reference (XXE) vulnerability. The application parses XML input without properly disabling external entity processing, allowing an attacker to manipulate XML input to potentially read local files or access sensitive information on the server.
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
- Low
- Authentication
- Y
- User interaction
- None
- Scope
- N
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:C/RE:M/U:Amber
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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Confirm Operations Bridge Manager is installedLocate the installation directory or check for the OpenText Operations Bridge Manager service/process on the system. Common paths may include /opt/ or program files directories, or check running services.Affected if The product OpenText Operations Bridge Manager is present on the system
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Determine the installed versionCheck the product version by examining version files in the installation directory, using the product's version command, or reviewing admin UI about/pages. Compare the version number against any released patch information.Affected if The installed version has not received the CVE-2021-22501 patch
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Verify XML processing functionality is in useReview application configuration files for XML parser settings, check if XML import/export features are enabled, or examine logs for XML-related operations.Affected if XML parsing functionality is enabled and accessible to users
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Check XML parser configuration for external entity settingsExamine XML parser configuration files (such as parser settings, web.xml, or similar configuration) to determine if external entity resolution has been explicitly disabled.Affected if External entity processing is not explicitly disabled in XML parser settings
A user is affected if OpenText Operations Bridge Manager is installed and the XML parser does not explicitly disable external entity resolution, allowing untrusted XML input to be processed.
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 the vendor-supplied patch or upgrade to a patched version of Operations Bridge Manager. If immediate patching is not possible, disable external entity resolution in XML parsers and implement input validation for XML submissions.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-22501 — 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-2021-22501 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
- No spam, self-promotion, credentials, or personal data