CVE-2026-72920
SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
SeaweedFS 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.
| CWE | CWE-306 |
| Vendor | seaweedfs |
| Product | seaweedfs |
| Published | Aug 11, 2026 |
| Last Updated | Aug 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for seaweedfs seaweedfs
Be the first to know when new critical vulnerabilities affecting seaweedfs seaweedfs are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
seaweedfs / seaweedfs
< 4.24
References
github.com: https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg github.com: https://github.com/seaweedfs/seaweedfs/pull/9442 github.com: https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7 github.com: https://github.com/seaweedfs/seaweedfs/releases/tag/4.24