CVE-2026-73289
HighCVSS 8.1Summary
RustFS before version 1.0.0-beta.12 has incorrect evaluation of ForAllValues: and ForAnyValue: qualifiers with negated string operators, potentially granting access to excluded principals or making Deny rules ineffective.
Risk Assessment
Risk of unauthorized access to resources or violation of security policies based on JWT groups and roles.
Recommendation
Upgrade RustFS to version 1.0.0-beta.12 or later.
Original NVD description (English source)
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, 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.