{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42594", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-29T00:31:15.724Z", "datePublished": "2026-05-14T15:32:32.308Z", "dateUpdated": "2026-05-16T00:34:56.941Z"}, "containers": {"cna": {"title": "Gotenberg: Unauthenticated denial of service via echo.Context pool reuse in webhook async goroutine", "problemTypes": [{"descriptions": [{"cweId": "CWE-362", "lang": "en", "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-r33j-c622-r6qp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-r33j-c622-r6qp"}], "affected": [{"vendor": "gotenberg", "product": "gotenberg", "versions": [{"version": "< 8.32.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-14T15:32:32.308Z"}, "descriptions": [{"lang": "en", "value": "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. 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."}], "source": {"advisory": "GHSA-r33j-c622-r6qp", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-r33j-c622-r6qp", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-16T00:33:54.440411Z", "id": "CVE-2026-42594", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-16T00:34:56.941Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.32.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "gotenberg", "source": "cna", "vendor": "gotenberg"}, "product": "gotenberg", "vendor": "gotenberg"}], "created": "2026-05-14T17:30:15.696460+00:00", "updated": "2026-05-14T19:00:13.403455+00:00", "vendors": ["gotenberg", "gotenberg$PRODUCT$gotenberg"]}