CVE-2026-61681

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.

CVSS v3 4.1 MEDIUM

4.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98
https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499

Configurations

No configuration.

History

21 Sep 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 16:17

Updated : 2026-09-24 23:17

NVD link : CVE-2026-61681

Mitre link : CVE-2026-61681

CVE.ORG link : CVE-2026-61681

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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