CVE-2026-61681
Description
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, the SNS UnsubscribeConfirmation handler in internal/integrations/ingestors/sns/sns.go calls http.Get() on payload.UnsubscribeURL after VerifyPayload() even though BuildSignature() excludes UnsubscribeURL, allowing an authenticated Hatchet tenant to replace that field in an otherwise valid AWS-signed message with an internal URL. The server-side request can reach EC2 Instance Metadata Service, internal services, and internal HTTP APIs, potentially exposing IAM credentials or network-accessible data and functionality. This issue is fixed in version 0.91.1.
How to fix
- hatchet-dev/hatchet0.91.1 or later
- github.com/hatchet-dev/hatchet0.91.2, 0.91.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hatchet-dev/hatchetGo | v < 0.91.1 | 0.91.1 |
| github.com/hatchet-dev/hatchetGo | v < 0.91.2, v < 0.91.1 | 0.91.2, 0.91.1 |
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