CVE-2025-68926

critical-risk

Published 2025-12-30

RustFS is a distributed object storage system built in Rust. In versions prior to 1.0.0-alpha.78, RustFS implements gRPC authentication using a hardcoded static token `"rustfs rpc"` that is publicly exposed in the source code repository, hardcoded on both client and server sides, non-configurable with no mechanism for token rotation, and universally valid across all RustFS deployments. Any attacker with network access to the gRPC port can authenticate using this publicly known token and execute privileged operations including data destruction, policy manipulation, and cluster configuration changes. Version 1.0.0-alpha.78 contains a fix for the issue.

Do I need to act?

10.6% chance of exploitation in next 30 days

EPSS score — higher than 89% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (20)

Rustfs

Affected Vendors

Rustfs

References (1)

Exploit https://github.com/rustfs/rustfs/security/advisories/GHSA-h956-rh7x-ppgj

/ 100

critical-risk

Severity 32/34 · Critical

Exploitability 11/34 · Low

Exposure 28/34 · Critical