{"id":"CVE-2025-31489","state":"PUBLISHED","title":"MinIO performs incomplete signature validation for unsigned-trailer uploads","description":"MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access\nto - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z.","publishedAt":"2025-04-03T19:36:09.335Z","updatedAt":"2025-04-03T20:36:19.079Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["minio minio"],"affected":[{"vendor":"minio","product":"minio","versions":[{"version":"< RELEASE.2025-04-03T14-56-28Z","status":"affected"}]}],"references":["https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh","https://github.com/minio/minio/pull/21103"],"weaknesses":["CWE-347"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/31xxx/CVE-2025-31489.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-31489","state":"PUBLISHED","datePublished":"2025-04-03T19:36:09.335Z","dateUpdated":"2025-04-03T20:36:19.079Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-03-28T13:36:51.298Z"},"containers":{"cna":{"title":"MinIO performs incomplete signature validation for unsigned-trailer uploads","descriptions":[{"lang":"en","value":"MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access\nto - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z."}],"affected":[{"vendor":"minio","product":"minio","versions":[{"version":"< RELEASE.2025-04-03T14-56-28Z","status":"affected"}]}],"references":[{"url":"https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh","name":"https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/minio/minio/pull/21103","name":"https://github.com/minio/minio/pull/21103","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","lang":"en","description":"CWE-347: Improper Verification of Cryptographic Signature","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-04-03T19:36:09.335Z"},"source":{"advisory":"GHSA-wg47-6jq2-q2hh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-03T20:36:06.237877Z","id":"CVE-2025-31489","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-03T20:36:19.079Z"}}]}}}