SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72920
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-11 15:17:38 UTC
Updated2026-08-11 15:17:38 UTC
DescriptionSeaweedFS is a distributed storage system. Prior to 4.24, the filer registers the SeaweedIdentityAccessManagement gRPC service without mandatory authentication when jwt.filer_signing.key is unset, allowing any client that can reach the filer gRPC port to invoke CreateUser, CreateAccessKey, PutPolicy, and related IAM RPCs to mint credentials and gain S3 administrative control. This issue is fixed in versions 4.24.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Seaweedfs Seaweedfs affected < 4.24 Not specified

References

ReferenceSourceLinkTags
github.com/seaweedfs/seaweedfs/releases/tag/4.24 [email protected] github.com
github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg [email protected] github.com
github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd26051644337... [email protected] github.com
github.com/seaweedfs/seaweedfs/pull/9442 [email protected] github.com
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