CVE-2026-22782 LOW

CVE-2026-22782: RustFS RPC signature verification logs shared secret

Vendor Rustfs
Product rustfs
Weakness CWE-532 · Sensitive info in logs
Published January 16, 2026
Last update January 16, 2026
View on NVD All CVEs

CVSS base score

2.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

RustFS is a distributed object storage system built in Rust. From >= 1.0.0-alpha.1 to 1.0.0-alpha.79, invalid RPC signatures cause the server to log the shared HMAC secret (and expected signature), which exposes the secret to log readers and enables forged RPC calls. In crates/ecstore/src/rpc/http_auth.rs, the invalid signature branch logs sensitive data. This log line includes secret and expected_signature, both derived from the shared HMAC key. Any invalidly signed request triggers this path. The function is reachable from RPC and admin request handlers. This vulnerability is fixed in 1.0.0-alpha.80.

Key dates

02Disclosure timeline

January 16, 2026 CVE published
January 16, 2026 Record updated