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CVE-2026-45044— RustFS: Authentication bypass in /profile/cpu and /profile/memory allows unauthenticated access to profiling handlers

Quick assessment

Affected
rustfs rustfs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

rustfs是RustFS开源的一个高性能对象存储系统。 rustfs 1.0.0-beta.2之前版本存在安全漏洞，该漏洞源于管理路由器对性能分析端点未进行身份验证，可能导致CPU资源消耗和服务器文件系统路径泄露。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.54% · P44

Affected Version Matrix 1

VendorProduct Version RangeStatus
rustfs rustfs < 1.0.0-beta.2 affected
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I. Basic Information for CVE-2026-45044

Vulnerability Information
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Vulnerability Title
RustFS: Authentication bypass in /profile/cpu and /profile/memory allows unauthenticated access to profiling handlers
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
rustfs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
rustfs是RustFS开源的一个高性能对象存储系统。 rustfs 1.0.0-beta.2之前版本存在安全漏洞，该漏洞源于管理路由器对性能分析端点未进行身份验证，可能导致CPU资源消耗和服务器文件系统路径泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rustfs rustfs < 1.0.0-beta.2 -

II. Public POCs for CVE-2026-45044

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III. Intelligence Information for CVE-2026-45044

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Vendor Advisories for CVE-2026-45044 (1)

Same Patch Batch · rustfs · 2026-05-28 · 7 CVEs total

CVE-2026-45039 9.8 CRITICAL RustFS: Internode RPC HMAC secret falls back to public default credential, enabling peer i
CVE-2026-45042 RustFS: UploadPartCopy Does Not Enforce Destination Bucket Policy on Copy Source
CVE-2026-45040 RustFS: Sensitive Information Leakage (SessionToken and SecretAccessKey) in RustFS Logs [D
CVE-2026-45041 RustFS: Hard-coded RSA private key in license verifier permits arbitrary license forgery
CVE-2026-47136 RustFS: Unauthenticated RustFS console license endpoint exposes license metadata
CVE-2026-46685 RustFS: Reflective CORS with credentials on S3 listener; unauthenticated license metadata

IV. Related Vulnerabilities

Same product: rustfs
Same vendor: rustfs
Same weakness: CWE-306

V. Comments for CVE-2026-45044

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