GoApplication · Golang
CVE-2020-29510
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 · uneditedThe encoding/xml package in Go versions 1.15 and earlier does not correctly preserve the semantics of directives during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.
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 encoding/xml package in Go 1.15 and earlier fails to preserve the semantics of XML directives (like <?...?>) during tokenization round-trips. When XML is parsed and re-serialized, directives may be transformed or lose their original semantics, enabling crafted inputs to behave inconsistently across processing stages.
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
GoApplication
<= 1.15all versionsCVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
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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Check Go versionRun 'go version' in your terminal or check the go binary path with 'which go' and then execute the version commandAffected if The reported version is 1.15 or earlier (e.g., 1.14, 1.13, etc.)
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Identify Netapp Trident installationCheck for Trident binary or container images using 'tridentctl version' or inspect for Trident pods in Kubernetes with 'kubectl get pods -n trident' or check for /var/lib/trident directoryAffected if Netapp Trident is installed and running, regardless of version
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Audit XML processing codeSearch source code for imports of 'encoding/xml' package and usage of xml.NewDecoder or xml.Unmarshal with XML inputs that may contain directive tokens like <?...?>Affected if Your application parses XML using the encoding/xml package and processes documents that include XML directives
You are affected if you run Go version 1.15 or earlier, or use Netapp Trident of any version, and your application processes XML documents containing directives that require semantic preservation across parsing and re-serialization.
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 Go to version 1.16 or later to obtain the fixed encoding/xml package, and audit XML processing code for logic that depends on directive preservation.
Fix this in Go
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-29510 — 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-2020-29510 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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