{"answers":{"affected":"2 open source packages ship an affected version, including github.com/minio/minio. It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2023-28434 in the wild since at least 19 Sep 2023.","fix":"Upgrade github.com/minio/minio to 0.0.0-202303200415 or later. US federal agencies must fix it by 10 Oct 2023.","what":"CVE-2023-28434 is a high-severity vulnerability in minio, published on 22 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-28434 and fix it if it is affected.\n\nWhat it is: CVE-2023-28434 is a high-severity vulnerability in minio, published on 22 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2023-28434 in the wild since at least 19 Sep 2023.\n\nAffected packages and fixed versions:\n- github.com/minio/minio (Go): affected all versions; fixed in 0.0.0-202303200415\n- github.com/minio/minio (Go): affected all versions; fixed in 0.0.0-202303200415\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-28434/ (Markdown: https://insights.sbomify.com/CVE-2023-28434/index.md)","id":"CVE-2023-28434","markdown":"https://insights.sbomify.com/CVE-2023-28434/index.md","name":"CVE-2023-28434","record":{"aliases":["GHSA-2pxw-r47w-4p8c","MINI-4h7r-f3w5-mrq6","MINI-f4gp-rm3q-w7ww"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"MinIO object storage","requires_auth":"low_privilege","summary":"An attacker with specific permissions can bypass bucket checks to write objects to any bucket, requiring enabled Console API access.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"minio","vendor":"minio"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":"2023-03-27","github_poc":1,"max_poc_stars":318,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-03-27T08:53:04Z","kind":"github_poc","ref":"https://github.com/AbelChe/evil_minio","stars":318,"title":"EXP for CVE-2023-28434 MinIO unauthorized to RCE"}],"tier":"exploited"},"has_fix":true,"headline":"MinIO Security Feature Bypass","id":"CVE-2023-28434","indexable":true,"kev":{"dateAdded":"2023-09-19","dueDate":"2023-10-10","knownRansomwareCampaignUse":"Unknown","product":"MinIO","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","vendorProject":"MinIO","vulnerabilityName":"MinIO Security Feature Bypass Vulnerability"},"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"privilege_escalation","year":"2023"},"n_packages":2,"n_references":3,"next":{"headline":"Dataease file upload interface does not verify permission or file type","id":"CVE-2023-28435"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-202303200415"],"introduced":["0"],"last_affected":[],"package":"github.com/minio/minio","purl":null,"source":"GHSA-2pxw-r47w-4p8c"},{"ecosystem":"Go","fixed":["0.0.0-202303200415"],"introduced":["0"],"last_affected":[],"package":"github.com/minio/minio","purl":"pkg:golang/github.com/minio/minio","source":"GHSA-2pxw-r47w-4p8c"}],"prev":{"headline":"Minio Privilege Escalation on Windows via Path separator manipulation","id":"CVE-2023-28433"},"products":["minio"],"published":"2023-03-22","related":[{"cvss_score":7.5,"headline":"MinIO Information Disclosure","id":"CVE-2023-28432","kev_date_added":"2023-04-21","published":"2023-03-22"},{"cvss_score":9.3,"headline":"Authentication bypass MinIO Admin API","id":"CVE-2020-11012","kev_date_added":null,"published":"2020-04-23"},{"cvss_score":9.2,"headline":"MinIO: JWT Algorithm Confusion in OIDC Authentication","id":"CVE-2026-33322","kev_date_added":null,"published":"2026-03-24"},{"cvss_score":9.1,"headline":"MinIO: LDAP login brute-force via user enumeration and missing rate limit","id":"CVE-2026-33419","kev_date_added":null,"published":"2026-03-24"},{"cvss_score":8.8,"headline":"MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads","id":"CVE-2026-40344","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":8.8,"headline":"MinIO has an Unauthenticated Object Write via Query-String Credential Signature Bypass in Unsigned-Trailer Uploads","id":"CVE-2026-41145","kev_date_added":null,"published":"2026-04-22"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["minio"]},"summary":"An attacker with specific permissions can bypass bucket checks to write objects to any bucket, requiring enabled Console API access.","url":"https://insights.sbomify.com/CVE-2023-28434/"}