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GHSA-9fjq-45qv-pcm7 ruint

GHSA-9fjq-45qv-pcm7 is a remote code execution vulnerability in ruint. No vendor fix is recorded yet; mitigation options are listed below.

ruint affected by unsoundness of safe `reciprocal_mg10`

Also known asRUSTSEC-2025-0137
Published
Dec 26, 2025
Updated
Dec 27, 2025
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Dec 27, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🦀ruint

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

The function reciprocal_mg10 is marked as safe but can trigger undefined behavior (out-of-bounds access) because it relies on debug_assert! for safety checks instead of assert!.

When compiled in release mode, the debug_assert! is optimized out, potentially allowing invalid inputs to cause memory corruption.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🦀crates.ioruintall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Remediation status

    No patched version of ruint has shipped for GHSA-9fjq-45qv-pcm7 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-9fjq-45qv-pcm7 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-9fjq-45qv-pcm7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The function `reciprocal_mg10` is marked as safe but can trigger undefined behavior (out-of-bounds access) because it relies on `debug_assert!` for safety checks instead of `assert!`. When compiled in release mode, the `debug_assert!` is optimized out, potentially allowing invalid inputs to cause memory corruption.
O3 Security · Impact-Aware SCA

Is GHSA-9fjq-45qv-pcm7 in your dependencies?

O3 Security finds GHSA-9fjq-45qv-pcm7 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-9fjq-45qv-pcm7: ruint | O3 Security