HIGHVulnerability
CVE-2026-73285
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.
Properties
- severity
- HIGH
- score
- 7.5
- epss_score
- 0.00346
- cve_id
- CVE-2026-73285
- vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-08-12T15:18:31.840
- last_modified
- 2026-09-09T20:55:04.493
- epss_percentile
- 0.27688
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Incorrect Authorization
DESCRIBED_BY (1)
→[Source]NVD
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