How severe is GHSA-3hxh-7jxm-59x4?

No CVSS score has been assigned to GHSA-3hxh-7jxm-59x4 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-3hxh-7jxm-59x4?

GHSA-3hxh-7jxm-59x4 affects the following packages: metrics-util (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-3hxh-7jxm-59x4?

Update metrics-util to 0.7.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3hxh-7jxm-59x4 is resolved across your whole dependency graph.

How do I detect GHSA-3hxh-7jxm-59x4 in my crates.io dependencies?

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

How do I mitigate GHSA-3hxh-7jxm-59x4 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.

How does O3 Security protect against GHSA-3hxh-7jxm-59x4?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-3hxh-7jxm-59x4 can be triaged on real exposure rather than presence alone.

Is GHSA-3hxh-7jxm-59x4 actively exploited in the wild?

No public exploit code has been indexed for GHSA-3hxh-7jxm-59x4 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.

What is the EPSS score for GHSA-3hxh-7jxm-59x4?

GHSA-3hxh-7jxm-59x4 has an EPSS (Exploit Prediction Scoring System) score of 0.7%, placing it in the 53th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-3hxh-7jxm-59x4?

GHSA-3hxh-7jxm-59x4 is classified as CWE-362 (CWE-362), Out-of-bounds Write (CWE-787). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-3hxh-7jxm-59x4 published, and has it been updated?

GHSA-3hxh-7jxm-59x4 was published on June 17, 2022 and was last updated on November 8, 2023. 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

GHSA-3hxh-7jxm-59x4 — metrics-util

GHSA-3hxh-7jxm-59x4 is a CWE-362 vulnerability in metrics-util. A fix is available for metrics-util — see the affected versions and patch details below.

AtomicBucket<T> unconditionally implements Send/Sync

Also known asCVE-2021-45704 GHSA-cwvc-87xq-pc5mRUSTSEC-2021-0113

Published

Jun 17, 2022

Updated

Nov 8, 2023

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 17, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.7%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected

🦀metrics-util

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

In the affected versions of the crate, AtomicBucket<T> unconditionally implements Send/Sync traits. Therefore, users can create a data race to the inner T: !Sync by using the AtomicBucket::data_with() API. Such data races can potentially cause memory corruption or other undefined behavior.

The flaw was fixed in commit 8e6daab by adding appropriate Send/Sync bounds to the Send/Sync impl of struct Block<T> (which is a data type contained inside AtomicBucket<T>).

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`metrics-util`	all versions	0.7.0`cargo update -p metrics-util --precise 0.7.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for metrics-util, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update metrics-util to 0.7.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3hxh-7jxm-59x4 is resolved across your whole dependency graph.
Workarounds
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-3hxh-7jxm-59x4 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-3hxh-7jxm-59x4. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

In the affected versions of the crate, `AtomicBucket<T>` unconditionally implements `Send`/`Sync` traits. Therefore, users can create a data race to the inner `T: !Sync` by using the `AtomicBucket::data_with()` API. Such data races can potentially cause memory corruption or other undefined behavior. The flaw was fixed in commit 8e6daab by adding appropriate Send/Sync bounds to the Send/Sync impl of struct `Block<T>` (which is a data type contained inside `AtomicBucket<T>`).

O3 Security · Impact-Aware SCA

Is GHSA-3hxh-7jxm-59x4 in your dependencies?

O3 Security finds GHSA-3hxh-7jxm-59x4 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

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