Uncontrolled resource consumption in HackerOne extend
Priority MEDIUM 48CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
A prototype pollution vulnerability was found in module extend <2.0.2, ~<3.0.2 that allows an attacker to inject arbitrary properties onto Object.prototype.
Why it matters now
EPSS 0.0305 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial extend (npm): 3.0.2, 2.0.2Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HackerOne | extend | < 2.0.2, ~<3.0.2 | — | No fix listed | CNA |
| — | extend (npm) | 3.0.0 to before 3.0.2 | 3.0.2 | Patch available | GHSA-qrmc-fj45-qfc2 |
| — | extend (npm) | 1.1.3 to before 2.0.2 | 2.0.2 | Patch available | GHSA-qrmc-fj45-qfc2 |
- extend VendorHackerOne Affected < 2.0.2, ~<3.0.2 Fixed in — No fix listed CNA
- extend (npm) Vendor— Affected 3.0.0 to before 3.0.2 Fixed in 3.0.2 Patch available GHSA-qrmc-fj45-qfc2
- extend (npm) Vendor— Affected 1.1.3 to before 2.0.2 Fixed in 2.0.2 Patch available GHSA-qrmc-fj45-qfc2
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:extend_project:extend:*:*:*:*:*:node.js:*:* | before 2.0.2; 3.0.0 to before 3.0.2 | Vulnerable | Extend Project |
- cpe:2.3:a:extend_project:extend:*:*:*:*:*:node.js:*:* Versions before 2.0.2; 3.0.0 to before 3.0.2 Vulnerable ·Extend Project
Remediation
- Fix · GHSA-qrmc-fj45-qfc2 extend (npm) Fixed in 3.0.2 Advisory →
- Fix · GHSA-qrmc-fj45-qfc2 extend (npm) Fixed in 2.0.2 Advisory →
Red Hat 1 advisory
- RHSA-2021:3917 Released 2021-10-19 · Red Hat rating ImportantRed Hat Quay v3.6.0 security, bug fix and enhancement update
- Quay v3 quay/quay-rhel8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Quay v3 | Fixed | RHSA-2021:3917 |
Not affected: 3 products
- Quay v3
- Red Hat Mobile Application Platform 4
- Red Hat OpenShift Container Platform 3.10
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16492
- 2026-10-03 Alias added: GHSA-qrmc-fj45-qfc2
References
Exploit 1
Sources
- CVE-2018-16492 · CVE Program
- CVE-2018-16492 · NVD
- FIRST EPSS
- GHSA-qrmc-fj45-qfc2 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-16492 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences