Critical 9.8Published Aug 11, 2026

CVE-2026-72920SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control

Updated under an hour ago (2026-10-19 10:00 UTC)

Does this affect you?

It affects seaweedfs. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for seaweedfs

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

seaweedfs seaweedfs seaweedfs:seaweedfs (from the name)	before 4.24	CNA record

References

https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fgx-refsource-confirm
https://github.com/seaweedfs/seaweedfs/pull/9442x-refsource-misc
https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7x-refsource-misc
https://github.com/seaweedfs/seaweedfs/releases/tag/4.24x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.