🚨 CVE-2026-42193 (CVSS 9.1, CRITICAL): useplunk plunk < 0.9.0 fails to verify SNS signatures at /webhooks/sns, allowing spoofed webhook attacks. Patched in 0.9.0 — verify your version & check vendor advisory. https://radar.offseq.com/threat/cve-2026-42193-cwe-347-improper-verification-of-cr-fc4beea9 #OffSeq #Vuln #EmailSecurity #CVE202642193