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Not in CISA KEV
HIGH severity

GHSA-hc9w-4p87-j549

HIGH

GHSA-hc9w-4p87-j549 is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in cached-path-relative. O3 Security confirms whether GHSA-hc9w-4p87-j549 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Prototype Pollution in cached-path-relative

Also known asCVE-2018-16472
Published
Nov 7, 2018
Updated
Nov 8, 2023
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 8, 2023 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

cached-path-relativenpm
1.1Mdownloads / week

Description

Version of cached-path-relative before 1.0.2 are vulnerable to prototype pollution.

Recommendation

Update to version 1.0.2 or later.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmcached-path-relativeall versions1.0.2

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for cached-path-relative. 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 cached-path-relative to 1.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hc9w-4p87-j549 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-hc9w-4p87-j549 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-hc9w-4p87-j549. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Version of `cached-path-relative` before 1.0.2 are vulnerable to prototype pollution. ## Recommendation Update to version 1.0.2 or later.
O3 Security · Impact-Aware SCA

Is GHSA-hc9w-4p87-j549 in your dependencies?

O3 detects GHSA-hc9w-4p87-j549 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-hc9w-4p87-j549: Prototype Pollution in… | O3 Security