Status: UPDATED | Advisory ID: CVE-2026-104020
| CVE | CVE-2026-104020 |
| CVSS Score / Version | 7.5 (High) / CVSS v3.1 |
| Updated | 2026-10-02 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high. |
| Affected products | amazon ion-python |
| Classified as | CWE-674 (Uncontrolled Recursion) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| amazon | ion-python |
| Subsystems | General OT |
| Sectors | Multiple |
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 0.15.0 or later. (NVD)
Monitor amazon's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-104020 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-104020 |