Categories
CVE-2020-15256

Vulnerability in object-path (CVE-2020-15256)

Summary

Vulnerability in object-path (CVE-2020-15256). Data can be tampered with by attackers. Exploitable via includeInheritedProps. Mitigation: upgrade to 0.11.5 or later.

Original description

The description as published by the source.

Impact

A prototype pollution vulnerability has been found in object-path <= 0.11.4 affecting the set() method. The vulnerability is limited to the includeInheritedProps mode (if version >= 0.11.0 is used), which has to be explicitly enabled by creating a new instance of object-path and setting the option includeInheritedProps: true, or by using the default withInheritedProps instance. The default operating mode is not affected by the vulnerability if version >= 0.11.0 is used. Any usage of set() in versions < 0.11.0 is vulnerable.

Patches

Upgrade to version >= 0.11.5

Workarounds

Don't use the includeInheritedProps: true options or the withInheritedProps instance if using a version >= 0.11.0.

References

Read more about the prototype pollution vulnerability

For more information

If you have any questions or comments about this advisory:

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2020-15256 has been found in object-path.
Attackers can target a specific entry point like includeInheritedProps over the network to misuse the product.
Data can be tampered with by attackers.
What to do: upgrade object-path to 0.11.5 or later.
If unsure, ask your IT team or search "object-path CVE-2020-15256" on the vendor's site.

CVE-2020-15256 (object-path) — CWE-20
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: includeInheritedProps / withInheritedProps
Patched: 0.11.5 — apply immediately
Workaround: Don't use the includeInheritedProps: true options or the withInheritedProps instance if using a version >= 0.11.0.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-20) exists in object-path. Attackers reach the vulnerable code path via includeInheritedProps without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of object-path. Attack surface: includeInheritedProps / withInheritedProps.

🔥 Severity

Severity: ?. Data can be tampered with by attackers.

🔧 How to fix

Update to 0.11.5.

🛡️ Workaround

Workaround: Don't use the includeInheritedProps: true options or the withInheritedProps instance if using a version >= 0.11.0.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'object-path' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'object-path' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で object-path を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply temporary workaround mitigate
    Don't use the `includeInheritedProps: true` options or the `withInheritedProps` instance if using a version >= 0.11.0.

    パッチが適用されるまでの応急処置として、Don't use the includeInheritedProps: true options or the withInheritedProps instance if using a version >= 0.11.0. を実施。回避策の副作用 (機能低下) を確認した上で。

  3. 3
    Apply patch patch
    Upgrade object-path to 0.11.5

    ステージング環境で 0.11.5 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  4. 4
    Post-deployment verification verify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

npm object-path
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.11.5"}]}]

References

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