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Vulnerability IntelligenceCVE-2026-45040

CVE-2026-45040

MEDIUM5.3

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

Published May 28, 2026

Modified 3 weeks ago

Details

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.

References

https://github.com/rustfs/rustfs/security/advisories/GHSA-8cm2-h255-v749

https://www.cve.org/CVERecord?id=CVE-2026-45040

CVSS Analysis

CVSS v4.0

5.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

LowVC:L

Vuln. Integrity

NoneVI:N

Vuln. Availability

NoneVA:N

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

5.3/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

Weakness Type (CWE)

Information Disclosure

Log File Info Leak

Other

Ecosystems

Timeline

PublishedMay 28, 2026

ModifiedJun 2, 2026

CVE-2026-45040 | Mondoo Vulnerability Intelligence