{"id":"CVE-2026-73289","title":"RustFS is a distributed object storage system built in Rust","summary":"RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, RustFS evaluates the ForAllValues: and ForAnyValue: set qualifiers with the negated string operators StringNotEquals, StringNotEqualsIgnoreCase, StringN…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-863"],"published":"2026-08-12","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:02:22.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73289","references":[{"url":"https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb","label":"security-advisories@github.com"},{"url":"https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12","label":"security-advisories@github.com"},{"url":"https://github.com/rustfs/rustfs/security/advisories/GHSA-v9cp-qfw9-9pfp","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00231,"epssPercentile":0.14159,"ingestedAt":"2026-09-09T21:22:45.531Z","slug":"CVE-2026-73289","body":"## Overview\n\nRustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, RustFS evaluates the ForAllValues: and ForAnyValue: set qualifiers with the negated string operators StringNotEquals, StringNotEqualsIgnoreCase, StringNotLike, ArnNotEquals, and ArnNotLike using each other's semantics because crates/policy/src/policy/function/string.rs negates the aggregate result after eval or eval_like instead of negating each request-value predicate before quantification. Partially overlapping policy and request value sets can therefore make an Allow condition grant access to an excluded principal or make a Deny guardrail fail, including policies based on jwt:groups and jwt:roles; absent keys also receive the opposite ForAllValues: and ForAnyValue: behavior. This issue is fixed in version 1.0.0-beta.12.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}