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Case File

CVE-2020-29509

CRITICAL · CVSS 9.8 EPSS 2.08% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-12-14 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-29509
Severity
CRITICAL
CVSS
9.8
EPSS
2.08%

Original NVD 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.