CVE-2026-104020
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Amazon | ion-python | 0 < 0.15.0 | affected |
Weaknesses
- CWE-674: CWE-674 Uncontrolled recursion
References
- https://github.com/amazon-ion/ion-python/releases/tag/v0.15.0
- https://aws.amazon.com/security/security-bulletins/2026-122-aws/
- https://github.com/amazon-ion/ion-python/security/advisories/GHSA-93q6-f8hx-vv7f
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