claude-XML-injection

Claude Sonnet 4.6 — Credential Fabrication via XML Tag Injection Reported: June 14, 2026 | Patched: June 20, 2026 | Anthropic Response: None 56 days Researcher: X1NON Affected Model: Claude Sonnet 4.6 and other non-Haiku Claude models Severity: High CVSS 8.7 Status: Patched — No bounty awarded, n...