CVE-2026-72920: seaweedfs
Vulnerability summary
CVE-2026-72920 is a critical (CVSS 9.8) vulnerability in seaweedfs. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 11-08-2026PublishedVulnerability first disclosed.
- 11-08-2026Last modifiedVulnerability information updated.
Description
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 metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.78%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
+0.37 pp
From 0.41% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Github.com/seaweedfs1 product
- seaweedfs< 0.0.0-20260512171108-5e8f99f40a8a
Seaweedfs1 product
- seaweedfs< 4.24
2 vendors · 2 products
References
6 links- github.com/seaweedfs/seaweedfs/security/advisories/GHSA-2v6v-25fm-p4fgX Refsource CONFIRMWEBAdvisory
- github.com/seaweedfs/seaweedfs/commit/5e8f99f40a8abc7b449aefd260516443377041c7X Refsource MISCWEBFIX