GHSA-2326-pfpj-vx3h — lexical-core
GHSA-2326-pfpj-vx3h is a security vulnerability in lexical-core. A fix is available for lexical-core — see the affected versions and patch details below.
lexical-core has multiple soundness issues
Real-World Exposure
lexical-coreReal-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
RUSTSEC-2024-0377 contains multiple soundness issues:
- Bytes::read() allows creating instances of types with invalid bit patterns
- BytesIter::read() advances iterators out of bounds
- The
BytesItertrait has safety invariants but is public and not markedunsafe write_float()callsMaybeUninit::assume_init()on uninitialized data, which is is not allowed by the Rust abstract machineradix()callsMaybeUninit::assume_init()on uninitialized data, which is is not allowed by the Rust abstract machine
Version 1.0 fixes these issues, removes the vast majority of unsafe code, and also fixes some correctness issues.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | lexical-core | all versions | 1.0.0cargo update -p lexical-core --precise 1.0.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for lexical-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update lexical-core to 1.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2326-pfpj-vx3h 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-2326-pfpj-vx3h can be triaged on real exposure rather than presence alone.
Tailored to GHSA-2326-pfpj-vx3h. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-2326-pfpj-vx3h in your dependencies?
O3 Security finds GHSA-2326-pfpj-vx3h across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.