# CVE-2026-45044: RustFS missing authentication in admin profiling endpoints

Source: https://junglewise.ai/threats/cve-2026-45044-rustfs-missing-authentication-in-admin-profiling-endpoints  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-28. Updated: 2026-05-28  
License: CC BY 4.0 with a link back

CVE-2026-45044 · Severity: info · CVSS 8.8 · Published 2026-05-28

RustFS, a distributed storage system, contains a security flaw where administrative profiling tools are accessible without a password. An attacker can remotely trigger intensive 60-second CPU diagnostic tasks, which can overwhelm the server and cause a service outage. Additionally, the system reveals its internal folder structure to anyone who accesses these tools, providing information that could be used for further attacks.

## Quick answers

**Is CVE-2026-45044 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45044 being exploited in the wild.

**How severe is CVE-2026-45044?** Informational severity, with a CVSS score of 8.8, published 28 May 2026.

**Which products and versions are affected?** RustFS RustFS < 1.0.0-beta.2.

**Is there a fix for CVE-2026-45044?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-45044 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-45044?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A missing authentication check (CWE-306) in 'rustfs/src/admin/router.rs' explicitly whitelists the '/profile/cpu' and '/profile/memory' endpoints from the authentication layer. On glibc-based systems, invoking the CPU profiling handler triggers a fixed 60-second profiling operation via 'dump_cpu_pprof_for', which can be abused by unauthenticated network attackers to cause a Denial of Service (DoS) through CPU exhaustion. Furthermore, the handler in 'rustfs/src/admin/handlers/profile.rs' returns the server's absolute filesystem path in the HTTP response body, leading to information disclosure. The vulnerability is confirmed to bypass 401/403 checks even on builds where the profiling fails (returning 500 instead). The issue is resolved in version 1.0.0-beta.2.

## Affected products

- RustFS RustFS < 1.0.0-beta.2

## Timeline

- 2026-05-09: advisory: GitHub Security Advisory published
- 2026-05-28: disclosed: CVE published to NVD

## References

- [https://github.com/rustfs/rustfs/security/advisories/GHSA-8784-9m7f-c6p6](https://github.com/rustfs/rustfs/security/advisories/GHSA-8784-9m7f-c6p6)