{"answers":{"affected":"2 open source packages ship an affected version, including rustfs. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39360 exists.","fix":"No fix has been published for CVE-2026-39360 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-39360 is a medium-severity missing authorization vulnerability in rustfs, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-39360 and fix it if it is affected.\n\nWhat it is: CVE-2026-39360 is a medium-severity missing authorization vulnerability in rustfs, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39360 exists.\n\nAffected packages and fixed versions:\n- rustfs (crates.io): affected all versions up to 0.0.2; no fix listed\n- rustfs (crates.io): affected all versions up to 0.0.2; no fix listed\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-2026-39360/ (Markdown: https://insights.sbomify.com/CVE-2026-39360/index.md)","id":"CVE-2026-39360","markdown":"https://insights.sbomify.com/CVE-2026-39360/index.md","name":"CVE-2026-39360","record":{"aliases":["GHSA-mx42-j6wv-px98"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"RustFS object storage","requires_auth":"low_privilege","summary":"A missing authorization check in RustFS allows low-privileged users to exfiltrate objects from other buckets via multipart copy operations.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"rustfs","vendor":"rustfs"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"RustFS is a distributed object storage system built in Rust. Prior to alpha.90, RustFS contains a missing authorization check in the multipart copy path (UploadPartCopy). A low-privileged user who cannot read objects from a victim bucket can still exfiltrate victim objects by copying them into an attacker-controlled multipart upload and completing the upload. This breaks tenant isolation in multi-user / multi-tenant deployments. This vulnerability is fixed in alpha.90.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"RustFS has an authorization bypass in multipart UploadPartCopy enables cross-bucket object exfiltration","id":"CVE-2026-39360","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"OpenObserve has a SSRF Protection Bypass via IPv6 Bracket Notation in validate_enrichment_url","id":"CVE-2026-39361"},"packages":[{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.0.2"],"package":"rustfs","purl":null,"source":"GHSA-mx42-j6wv-px98"},{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.0.2"],"package":"rustfs","purl":"pkg:cargo/rustfs","source":"GHSA-mx42-j6wv-px98"}],"prev":{"headline":"Wazuh: Unauthenticated Path Traversal in authd via Agent Group Name","id":"CVE-2026-39359"},"products":["rustfs"],"published":"2026-04-07","related":[{"cvss_score":9.8,"headline":"RustFS has a gRPC Hardcoded Token Authentication Bypass","id":"CVE-2025-68926","kev_date_added":null,"published":"2025-12-30"},{"cvss_score":9.1,"headline":"Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover","id":"CVE-2026-27822","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":8.8,"headline":"RustFS Path Traversal Vulnerability","id":"CVE-2025-68705","kev_date_added":null,"published":"2026-01-07"},{"cvss_score":8.3,"headline":"RustFS: Missing admin authorization on notification target endpoints allows unauthenticated configuration of event webhooks","id":"CVE-2026-40937","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":8.1,"headline":"RustFS's Missing Post Policy Validation leads to Arbitrary Object Write","id":"CVE-2026-27607","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":7.7,"headline":"RustFS sourceIp bypass via spoofed X-Forwarded-For/Real-IP headers","id":"CVE-2026-21862","kev_date_added":null,"published":"2026-02-03"},{"cvss_score":6.9,"headline":"RustFS Logs Sensitive Credentials in Plaintext","id":"CVE-2026-24762","kev_date_added":null,"published":"2026-02-03"}],"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":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-07","vendors":["rustfs"]},"summary":"A missing authorization check in RustFS allows low-privileged users to exfiltrate objects from other buckets via multipart copy operations.","url":"https://insights.sbomify.com/CVE-2026-39360/"}