High severity · published May 28, 2026
CVE-2026-45044
RustFS: Authentication bypass in /profile/cpu and /profile/memory allows unauthenticated access to profiling handlers
8.8
CVSS
0.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
rustfs · rustfs
< 1.0.0-beta.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45044
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45044
github.com
https://github.com/rustfs/rustfs/security/advisories/GHSA-8784-9m7f-c6p6
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