{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50136", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-03T18:49:32.275Z", "datePublished": "2026-06-26T20:36:54.016Z", "dateUpdated": "2026-06-27T03:14:40.644Z"}, "containers": {"cna": {"title": "Budibase: Unauthenticated S3 signed upload URL generation allows arbitrary writes with stored datasource credentials", "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "lang": "en", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/Budibase/budibase/security/advisories/GHSA-jj36-r9w3-3pfh", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/Budibase/budibase/security/advisories/GHSA-jj36-r9w3-3pfh"}], "affected": [{"vendor": "Budibase", "product": "budibase", "versions": [{"version": "< 3.39.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-26T20:36:54.016Z"}, "descriptions": [{"lang": "en", "value": "Budibase is an open-source low-code platform. Prior to 3.39.3, the application server exposes an unauthenticated endpoint that generates S3 PutObject presigned URLs using credentials stored in a workspace datasource. The route is protected only by the recaptcha middleware and does not require authentication, table permission, datasource permission, or builder access. A public caller who knows a workspace ID and S3 datasource ID can request a signed upload URL for attacker-controlled bucket and key values. This vulnerability is fixed in 3.39.3."}], "source": {"advisory": "GHSA-jj36-r9w3-3pfh", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/Budibase/budibase/security/advisories/GHSA-jj36-r9w3-3pfh", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-27T03:14:08.239023Z", "id": "CVE-2026-50136", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-06-27T03:14:40.644Z"}}]}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.39.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "budibase", "source": "cna", "vendor": "Budibase"}, "product": "budibase", "vendor": "budibase"}], "created": "2026-06-26T22:30:04.057634+00:00", "updated": "2026-06-27T01:30:09.232574+00:00", "vendors": ["budibase", "budibase$PRODUCT$budibase"]}