CVE-2026-104020

Published 1 October 2026 · tracked since 2 October 2026

Description

Uncontrolled recursion in the Ion reader in Amazon Ion Python before 0.15.0 might allow a remote unauthenticated actor to crash the application using the library, resulting in a denial of service, via a crafted, deeply nested Ion value.To remediate this issue, users should upgrade to version 0.1

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-104052 MEDIUM 6.3
• CVE-2026-104053 MEDIUM 6.3
• CVE-2026-103097 HIGH 7.5
• CVE-2026-103096 HIGH 7.5
• CVE-2026-103764 CRITICAL 9.8
• CVE-2026-103766 HIGH 7.2
• CVE-2026-103760 MEDIUM 5.9
• CVE-2026-104002 MEDIUM 5.3
• CVE-2026-104356 MEDIUM 5.9
• CVE-2026-104182 MEDIUM 6.2

→ Open the live CVE board · all tools