CVE-2026-45044CWE-306

RustFS: Authentication bypass in /profile/cpu and /profile/memory allows unauthenticated access to profiling handlers

High · published May 28, 2026

CVSS v4.0
8.8
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, the admin router explicitly whitelists /profile/cpu and /profile/memory from the authentication layer, allowing any unauthenticated HTTP client to invoke profiling handlers without credentials. On supported builds (e.g., glibc), the handler invokes a fixed 60-second CPU profiling operation (dump_cpu_pprof_for(Duration::from_secs(60))). This may result in significant CPU resource consumption per request and can potentially lead to denial of service when abused. Additionally, the handler returns the server’s absolute filesystem path in the response body, resulting in information disclosure. This vulnerability is fixed in 1.0.0-beta.2.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-05-28T18:31Z
EPSS history
Timeline
  • 28 MAY 18:31Z
    RustFS: Authentication bypass in /profile/cpu and /profile/memory allows unauthenticated access to profiling handlers
    cvelistv5