GHSA-g38r-8gmr-ghrf: Mysten metrics `mysten-metrics` Was Removed From Crates.io Vulnerability

CRITICAL
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CWE-506
Published
Advisory Summary

GHSA-g38r-8gmr-ghrf is a CRITICAL `mysten-metrics` was removed from crates.io vulnerability (CWE-506: Embedded Malicious Code) affecting Mysten metrics libraries in the crates.io ecosystem. The issue involves `mysten-metrics` was removed from crates.io for malicious code. Remediation is available in the latest vendor maintenance releases.

GHSA-g38r-8gmr-ghrf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-g38r-8gmr-ghrf
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-506: Embedded Malicious Code
Affected Product Mysten metrics
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-g38r-8gmr-ghrf

To remediate this vulnerability, upgrade all affected Mysten metrics dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mysten-metrics fixed: Latest secure release 
Upgrade mysten-metrics to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for mysten-metrics

How to Check if You Are Affected

To determine whether your application is affected by GHSA-g38r-8gmr-ghrf, inspect your project dependencies for Mysten metrics:

inspect dependencies for mysten-metrics

Analyze the terminal output to locate any version of Mysten metrics in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-506: Embedded Malicious Code, where the product contains code that appears to be malicious in nature. In Mysten metrics, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

`mysten-metrics` included a build script that attempted to exfiltrate data from the build machine. The malicious crate had 1 version published on 2026-04-20 and had no evidence of actual usage. This crate had no dependencies on crates.io.

GHSA-g38r-8gmr-ghrf Affected Mysten metrics Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
mysten-metrics
 crates.io

References

Mysten metrics Source Repository REPOSITORY
https://github.com/MystenLabs/sui
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2026-0107.html

Frequently Asked Questions

What is GHSA-g38r-8gmr-ghrf?
GHSA-g38r-8gmr-ghrf is a security vulnerability in Mysten metrics involving `mysten-metrics` was removed from crates.io for malicious code under CWE-506: Embedded Malicious Code.
Which Mysten metrics versions are affected?
Affected versions include releases prior to current release patches across affected packages: mysten-metrics.
What version fixes GHSA-g38r-8gmr-ghrf?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is mysten-metrics affected?
Yes, mysten-metrics is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-g38r-8gmr-ghrf?
GHSA-g38r-8gmr-ghrf is classified under CWE-506: Embedded Malicious Code (The product contains code that appears to be malicious in nature.).
How can I check crates.io dependencies for GHSA-g38r-8gmr-ghrf?
Run the dependency tree command: 'inspect dependencies for mysten-metrics'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g38r-8gmr-ghrf",
  "modified" : "2026-05-04T21:43:56Z",
  "published" : "2026-05-04T21:43:56Z",
  "aliases" : [ ],
  "summary" : "`mysten-metrics` was removed from crates.io for malicious code",
  "details" : "`mysten-metrics` included a build script that attempted to exfiltrate data from the build machine.\n\nThe malicious crate had 1 version published on 2026-04-20 and had no evidence of actual usage. This crate had no dependencies on crates.io.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "mysten-metrics"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "PACKAGE",
    "url" : "https://github.com/MystenLabs/sui"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2026-0107.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-506" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-04T21:43:56Z",
    "nvd_published_at" : null
  }
}