CVE-2026-45040CWE-312CWE-532

RustFS: Sensitive Information Leakage (SessionToken and SecretAccessKey) in RustFS Logs [Debug Mode]

Medium · published May 28, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
14.7
In the wild
Unconfirmed
What it is

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, RustFS suffers from sensitive information leakage in log outputs. When the server is run with RUST_LOG=debug sensitive credentials including SessionToken (JWT), SecretAccessKey, and full JWT claims are printed in plaintext to the server logs. This vulnerability is fixed in 1.0.0-beta.2.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00244 · 14.7th percentile
Weaknesses
CWE-312 · Cleartext Storage of Sensitive Information; CWE-532 · Insertion of Sensitive Information into Log File
Published
2026-05-28T18:35Z
EPSS history
Timeline
  • 28 MAY 18:35Z
    RustFS: Sensitive Information Leakage (SessionToken and SecretAccessKey) in RustFS Logs [Debug Mode]
    cvelistv5