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

Source: https://junglewise.ai/threats/cve-2025-69255-rustfs-grpc-getmetrics-deserialization-panic-enables-remote-dos  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-07  
License: CC BY 4.0 with a link back

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)](https://junglewise.ai/threats/technologies/rustfs). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io), [Rustfs](https://junglewise.ai/threats/vendors/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

  ```sh
  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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