What is CVE-2025-69255?

CVE-2025-69255 is a medium-severity vulnerability in Rustfs, classified under Improper Handling of Exceptional Conditions. CVSS score: 4.0/10. Published 2026-01-07.

How severe is CVE-2025-69255?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Rustfs

CVE-2025-69255

RustFS is a distributed object storage system built in Rust. In versions 1.0.0-alpha.13 to 1.0.0-alpha.77, a malformed gRPC GetMetrics request causes get_metrics to unwrap() failed deserialization of metric_type/opts, panicking the handler thread and enabling remote denial of service of the metrics endpoint. This issue has been patched in version 1.0.0-alpha.78.

EPSS: 0.003 (20.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Rustfs — versions 1.0.0, >= 1.0.0-alpha.13, < 1.0.0-alpha.78

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-69255?: CVE-2025-69255 is a medium-severity vulnerability in Rustfs, classified under Improper Handling of Exceptional Conditions. CVSS score: 4.0/10. Published 2026-01-07.
How severe is CVE-2025-69255?: Medium severity. CVSS v3 base score is 4.0 out of 10.