9.8

CVE-2026-45039

RustFS: Internode RPC HMAC secret falls back to public default credential, enabling peer impersonation

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, the internode RPC layer authenticates every request with an HMAC-SHA256 signature using a shared secret. The function that produces this secret, get_shared_secret() in crates/ecstore/src/rpc/http_auth.rs, falls back to the public, source-tree-embedded DEFAULT_SECRET_KEY = "rustfsadmin" when neither the RUSTFS_RPC_SECRET environment variable nor the global S3 secret key has been configured. This vulnerability is fixed in 1.0.0-beta.2.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerrustfs
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Produkt rustfs
Version < 1.0.0-beta.2
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.182
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-1392 Use of Default Credentials

The product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality.

CWE-798 Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

https://github.com/rustfs/rustfs/security/advisories/GHSA-r5qv-rc46-hv8q