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HIGH severity

Uninitialized memory use in generatorGHSA-6c65-xcf5-299x

HIGH

GHSA-6c65-xcf5-299x is a high-severity (CVSS 7.5) CWE-908 vulnerability in generator. A fix is available for generator — see the affected versions and patch details below.

Also known asCVE-2019-16144RUSTSEC-2019-0020
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs76th percentile — riskier than 76% of all scored CVEsHighest risk
0.00%0.71%1.42%2.13%0.3%1.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-6c65-xcf5-299x by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🦀generator

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

An issue was discovered in the generator crate before 0.6.18 for Rust. Uninitialized memory is used by Scope, done, and yield_ during API calls.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.iogeneratorall versions0.6.18cargo update -p generator --precise 0.6.18

Affected Products

1 product · 1 configurations
Application
generator-rsgenerator-rs_project
< 0.6.18
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update generator to 0.6.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6c65-xcf5-299x is resolved across your whole dependency graph.

  3. 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.

Frequently Asked Questions

An issue was discovered in the generator crate before 0.6.18 for Rust. Uninitialized memory is used by Scope, done, and yield_ during API calls.
O3 Security · Impact-Aware SCA

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Uninitialized memory use in generator (High 7.5)