VULNERABILITY INTELLIGENCE
CVE-2020-29509
CVSS score9.8 CRITICAL
EPSS probability2.10%
CISA KEVNot currently listed
Published2020-12-14
Last modified2026-06-17
Description
The encoding/xml package in Go (all versions) does not correctly preserve the semantics of attribute 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.