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.NET
.NET NuGet
Not in CISA KEV
HIGH severity

GHSA-hfvc-g252-rp4g

HIGHFix: turquoiseowl/i18n@c418e33

GHSA-hfvc-g252-rp4g is a high-severity (CVSS 7.5) vulnerability in i18n. O3 Security confirms whether GHSA-hfvc-g252-rp4g is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Denial of Service in i18n

Also known asCVE-2020-7791SNYK-DOTNET-I18N-1050179
Published
Dec 14, 2020
Updated
Jul 8, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
.NETi18n

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

Description

This affects the package i18n before version 2.1.15. Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGeti18nall versions2.1.15

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for i18n. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update i18n to 2.1.15 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hfvc-g252-rp4g 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-hfvc-g252-rp4g is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hfvc-g252-rp4g. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

This affects the package i18n before version 2.1.15. Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.
O3 Security · Impact-Aware SCA

Is GHSA-hfvc-g252-rp4g in your dependencies?

O3 detects GHSA-hfvc-g252-rp4g across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-hfvc-g252-rp4g: Denial of Service in… | O3 Security