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This issue is fixed in version 0.91.1.","state":0,"publishedAt":"2026-09-21T15:42:21.803+00:00","modifiedAt":"2026-09-24T22:17:06.909+00:00","affected":[{"ecosystem":"Vendor product","name":"hatchet","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"hatchet-dev\",\n                    \"product\": \"hatchet\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.91.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N","score":4.1,"severity":"MEDIUM"}],"references":["https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499","https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-61681","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-61681","identifiers":["CVE-2026-61681"]},"retained":false,"historicalAffected":[]},{"revision":"318265dffcd74f288e19dc3783486c4a","observedAt":"2026-11-09T14:10:16.942+00:00","statement":{"source":"euvd","id":"EUVD-2026-83976","aliases":["CVE-2026-61681","GHSA-fjwv-jf2v-j499"],"title":"Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. 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This issue is fixed in version 0.91.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N","score":4.1,"severity":null}],"references":["https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499","https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-83976","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 21, 2026, 3:42:21 PM","dateUpdated":"Sep 24, 2026, 10:17:06 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-83976","identifiers":["EUVD-2026-83976","CVE-2026-61681","GHSA-fjwv-jf2v-j499"]},"retained":false,"historicalAffected":[]},{"revision":"72293e09956d4bdd96498343ded457ed","observedAt":"2026-10-25T14:19:22.811+00:00","statement":{"source":"nvd","id":"CVE-2026-61681","aliases":[],"title":"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.Unsubscr…","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.","state":0,"publishedAt":"2026-09-21T16:17:09.823+00:00","modifiedAt":"2026-09-24T23:17:13.4+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N","score":4.1,"severity":"MEDIUM"}],"references":["https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98","https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61681","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-918"],"productCriteria":[],"sourceDates":{"published":"2026-09-21T16:17:09.823","lastModified":"2026-09-24T23:17:13.400"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-61681","identifiers":["CVE-2026-61681"]},"retained":false,"historicalAffected":[]},{"revision":"04415465762c4e72acf0774cb0e6375b","observedAt":"2026-11-04T23:56:21.54+00:00","statement":{"source":"osv","id":"GHSA-fjwv-jf2v-j499","aliases":["CVE-2026-61681","GO-2026-6565"],"title":"Hatchet: SSRF via Unsigned UnsubscribeURL in SNS UnsubscribeConfirmation Handler","description":"### Summary\n  The SNS `UnsubscribeConfirmation` handler in `internal/integrations/ingestors/sns/sns.go` makes an unvalidated\n  `http.Get()` call to `payload.UnsubscribeURL` without any URL restriction. Because `UnsubscribeURL` is intentionally\n  excluded from the `BuildSignature()` signed field list, an attacker can replace this field in a legitimately\n  AWS-signed message with an arbitrary internal URL, bypassing the `VerifyPayload()` signature check entirely and\n  triggering a Server-Side Request Forgery (SSRF) against internal infrastructure — including the EC2 Instance Metadata\n  Service (IMDS) at `169.254.169.254`.\n\n ### Impact\n\n  This is a Server-Side Request Forgery (SSRF) vulnerability. An attacker with a Hatchet account and an AWS Free Tier\n  account can:\n\n  - Reach the EC2 IMDS endpoint and retrieve IAM temporary credentials if Hatchet is deployed on AWS\n  - Port-scan and probe internal services not exposed to the internet\n  - Access internal HTTP APIs (e.g., Kubernetes API server, internal dashboards) from the Hatchet server's network\n  context","state":0,"publishedAt":"2026-09-22T20:34:12+00:00","modifiedAt":"2026-11-04T23:45:05.7484293+00:00","affected":[{"ecosystem":"Go","name":"github.com/hatchet-dev/hatchet","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.91.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499","https://nvd.nist.gov/vuln/detail/CVE-2026-61681","https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98","https://github.com/hatchet-dev/hatchet"],"sourceUrl":"https://github.com/advisories/GHSA-fjwv-jf2v-j499","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-fjwv-jf2v-j499","identifiers":["GHSA-fjwv-jf2v-j499","CVE-2026-61681","GO-2026-6565"]},"retained":false,"historicalAffected":[]},{"revision":"ed0bbedb98bc4e2dbcfbfc0a057c199e","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6565","aliases":["CVE-2026-61681","GHSA-fjwv-jf2v-j499"],"title":"SSRF via Unsigned UnsubscribeURL in SNS UnsubscribeConfirmation Handler in github.com/hatchet-dev/hatchet","description":"SSRF via Unsigned UnsubscribeURL in SNS UnsubscribeConfirmation Handler in github.com/hatchet-dev/hatchet","state":0,"publishedAt":"2026-10-01T20:23:38+00:00","modifiedAt":"2026-10-07T17:45:13.2663642+00:00","affected":[{"ecosystem":"Go","name":"github.com/hatchet-dev/hatchet","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.91.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-fjwv-jf2v-j499","https://github.com/hatchet-dev/hatchet/commit/2d211bce16e5022afaf95780de82dc30e0bcba98"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6565","license":"OSV · upstream source license applies","key":"osv:GO-2026-6565","identifiers":["GO-2026-6565","CVE-2026-61681","GHSA-fjwv-jf2v-j499"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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