Is CVE-2026-45040 actively exploited?

No active exploitation of CVE-2026-45040 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-45040 be exploited remotely?

Yes. CVE-2026-45040 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-45040?

CVE-2026-45040 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-45040

CWE-312Published: May 28, 2026· Updated: Jun 2, 2026

5.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.8th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-45040 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X