What’s Vulnerable › Vulnerabilities

CVE-2020-29511

• Severity: medium (CVSS 5.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-14 · updated 2026-06-17
• Weakness: CWE-115

Description

The encoding/xml package in Go (all versions) does not correctly preserve the semantics of element namespace prefixes 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.

Affected products

• Go: before 1.17 — fixed in 1.17
• NetApp Trident: all versions

How to fix

Upgrade to a fixed version: Go 1.17. Check the vendor advisory for mitigations.

References

• https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md
• https://security.netapp.com/advisory/ntap-20210129-0006/
• https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md
• https://security.netapp.com/advisory/ntap-20210129-0006/

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