{"apiVersion":"1.0","identifier":"CVE-2026-73285","description":"RustFS is a distributed object storage system built in Rust. From 1.0.0-alpha.64 until 1.0.0-rc.1, RustFS external OPA authorization enabled by RUSTFS_POLICY_PLUGIN_URL in crates/iam/src/sys.rs sets PreparedIamAuth.needs_existing_object_tag incorrectly for PreparedIamMode::Opa, causing maybe_merge_object_tag_conditions to omit s3:ExistingObjectTag/* values and allowing authenticated users to bypass tag-based policy restrictions. This issue is fixed in version 1.0.0-rc.1.","publishedAt":"2026-08-12T15:18:31","lastModifiedAt":"2026-08-12T15:18:31","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73285","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00346,"riskScore":0.77,"affectedProduct":"RustFS","affectedVersions":">=1.0.0-alpha.64,<1.0.0-rc.1","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73285","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73285","en":"https://www.redsauce.net/en/cves/CVE-2026-73285","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73285","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73285","de":"https://www.redsauce.net/de/cves/CVE-2026-73285","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73285","el":"https://www.redsauce.net/el/cves/CVE-2026-73285"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73285"}}