RustF: Request headers can populate server-derived IAM condition keys, letting a caller satisfy identity-based policy conditions

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73286
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 15:18:32 UTC
Updated2026-08-12 16:17:22 UTC
DescriptionRustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, RustFS get_condition_values folds attacker-controlled request headers from HeaderMap into server-derived userid, username, principaltype, groups, versionid, signatureversion, jwt:, and ldap: condition keys, allowing authenticated callers to satisfy identity-based policy conditions. This issue is fixed in version 1.0.0-beta.12.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rustfs Rustfs affected < 1.0.0-beta.12 Not specified

References

ReferenceSourceLinkTags
github.com/rustfs/rustfs/blob/380ed40b471887014fe21d069b61df9eacca074b/.... [email protected] github.com
github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12 [email protected] github.com
github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb [email protected] github.com
github.com/rustfs/rustfs/security/advisories/GHSA-6r96-hmgc-726c [email protected] github.com
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