How severe is GHSA-g38r-8gmr-ghrf?

No CVSS score has been assigned to GHSA-g38r-8gmr-ghrf yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-g38r-8gmr-ghrf?

GHSA-g38r-8gmr-ghrf affects the following packages: mysten-metrics (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-g38r-8gmr-ghrf?

The records we use list no patched version of mysten-metrics for GHSA-g38r-8gmr-ghrf. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect GHSA-g38r-8gmr-ghrf in my crates.io dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mysten-metrics, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-g38r-8gmr-ghrf if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is GHSA-g38r-8gmr-ghrf actively exploited in the wild?

No public exploit code has been indexed for GHSA-g38r-8gmr-ghrf yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-g38r-8gmr-ghrf published, and has it been updated?

GHSA-g38r-8gmr-ghrf was published on May 4, 2026 and was last updated on May 6, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🦀 crates.io

Not in CISA KEV

`mysten-metrics` was removed from crates.io for malicious codeGHSA-g38r-8gmr-ghrf

GHSA-g38r-8gmr-ghrf is a security vulnerability in mysten-metrics. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Also known asRUSTSEC-2026-0107

Published

May 4, 2026

Updated

May 6, 2026

Affected

1 pkg

Patched

None yet

Exploits

None indexed

Exploitation data as of May 6, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🦀mysten-metrics

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`mysten-metrics`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mysten-metrics, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of mysten-metrics for GHSA-g38r-8gmr-ghrf. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

`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.

O3 Security · Impact-Aware SCA

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