{"api_version":"1","generated_at":"2026-05-16T04:43:29+00:00","cve":"CVE-2026-42594","urls":{"html":"https://cve.report/CVE-2026-42594","api":"https://cve.report/api/cve/CVE-2026-42594.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-42594","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-42594"},"summary":{"title":"Gotenberg: Unauthenticated denial of service via echo.Context pool reuse in webhook async goroutine","description":"Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the webhook middleware spawns a goroutine that holds a reference to the request's echo.Context after the synchronous handler returns ErrAsyncProcess and Echo recycles the context back to its sync.Pool. When a concurrent request claims the recycled context, c.Reset() clears the store. 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Prior to 8.32.0, the webhook middleware spawns a goroutine that holds a reference to the request's echo.Context after the synchronous handler returns ErrAsyncProcess and Echo recycles the context back to its sync.Pool. When a concurrent request claims the recycled context, c.Reset() clears the store. If the webhook goroutine reaches hardTimeoutMiddleware at that moment, an unchecked type assertion on a nil store entry panics outside any recover() scope, crashing the Gotenberg process. Any anonymous caller reaches the webhook path (default webhook-deny-list filters only the webhook destination, not the submitter). A single-source stress of ~24 webhook requests plus ~60 GET /version requests crashes the process in about two seconds. This vulnerability is fixed in 8.32.0.","Type":"Description","Title":"Gotenberg: Unauthenticated denial of service via echo.Context po"}]}}}