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CVE

CVE-2026-72920

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

CVE-2026-72920

SeaweedFS: Unauthenticated filer IAM gRPC service grants S3 administrative control

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/seaweedfs/seaweedfs/releases/tag/4.24, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72920.json, https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fg, https://nvd.nist.gov/vuln/detail/CVE-2026-72920, https://github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7, https://github.com/seaweedfs/seaweedfs/pull/9442

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00408%
EPSS Percentile
0.33784%
Introduced Version
0
Fix Available
4bac9985b4a02af8e8df22454cdf63de2a247b49

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