{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54356","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-12T19:23:22.318Z","datePublished":"2026-08-17T20:32:05.691Z","dateUpdated":"2026-08-18T13:33:04.062Z"},"containers":{"cna":{"title":"Budibase authenticated arbitrary S3 signed upload URL issuance via `/api/attachments/:datasourceId/url`","problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx"},{"name":"https://github.com/Budibase/budibase/releases/tag/3.41.3","tags":["x_refsource_MISC"],"url":"https://github.com/Budibase/budibase/releases/tag/3.41.3"}],"affected":[{"vendor":"Budibase","product":"budibase","versions":[{"version":"< 3.41.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-17T20:32:05.691Z"},"descriptions":[{"lang":"en","value":"Budibase is an open-source low-code platform. Prior to 3.41.3, POST /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts and packages/server/src/api/controllers/static/index.ts allows an authenticated published-app user with the BASIC role to supply attacker-controlled bucket and key values and obtain signedUrl and publicUrl values backed by stored S3 datasource credentials. This issue is fixed in version 3.41.3."}],"source":{"advisory":"GHSA-6x9p-4r67-5gjx","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T13:32:40.505172Z","id":"CVE-2026-54356","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":"2026-08-18T13:33:04.062Z"}}]}}