CVE-2025-69255: RustFS gRPC GetMetrics deserialization panic enables remote DoS

CVE-2025-69255 · Severity: medium · CVSS 4 · Published 2026-01-07

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.

Technologies: rustfs (crates.io). Vendors: crates.io, Rustfs.

Quick answers

Is CVE-2025-69255 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-69255 being exploited in the wild.
How severe is CVE-2025-69255?
Medium severity, with a CVSS score of 4, published 7 January 2026.
Which products and versions are affected?
rustfs (crates.io) SEMVER:introduced=1.0.0-alpha.13,fixed=1.0.0-alpha.78.
Is there a fix for CVE-2025-69255?
Yes. rustfs (crates.io): upgrade to 1.0.0-alpha.78 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-69255?
Check whether you run rustfs (crates.io) or Rustfs at an affected version. 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.

How to fix

  • rustfs (crates.io): upgrade to 1.0.0-alpha.78 or later
    cargo update -p rustfs

Affected products

  • rustfs (crates.io) SEMVER:introduced=1.0.0-alpha.13,fixed=1.0.0-alpha.78
  • Rustfs

Identifiers

  • CVE-2025-69255
  • GHSA-gw2x-q739-qhcr

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