Description
An infinite loop issue in Amazon.IonDotnet library versions <v1.3.2 may allow a threat actor to cause a denial of service through a specially crafted text input.
To mitigate this issue, users should upgrade to version v1.3.2. As of August 20, 2025, this library has been deprecated and will not receive further updates.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Amazon | Amazon.IonDotnet | < 1.3.2 | 1.3.2 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Amazon.IonDotnet | < 1.3.2 | 1.3.2 | GHSA-q5r6-9qwq-g2wj |
References
- https://github.com/amazon-ion/ion-dotnet/releases/tag/v1.3.2 patch product
- https://aws.amazon.com/security/security-bulletins/AWS-2025-022/ vendor-advisory
- https://github.com/amazon-ion/ion-dotnet/security/advisories/GHSA-q5r6-9qwq-g2wj third-party-advisory