Uncontrolled resource consumption in HackerOne useragent node module
Priority LOW 35CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 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
Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier.
Why it matters now
EPSS 0.01144 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial useragent (npm): 2.1.13Red Hat: 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 | useragent node module | up to 2.1.12 | — | No fix listed | CNA |
| — | useragent (npm) | before 2.1.13 | 2.1.13 | Patch available | GHSA-pjmx-9xr3-82qr |
- useragent node module VendorHackerOne Affected up to 2.1.12 Fixed in — No fix listed CNA
- useragent (npm) Vendor— Affected before 2.1.13 Fixed in 2.1.13 Patch available GHSA-pjmx-9xr3-82qr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:useragent_project:useragent:*:*:*:*:*:node.js:*:* | up to 2.1.12 | Vulnerable | Useragent Project |
- cpe:2.3:a:useragent_project:useragent:*:*:*:*:*:node.js:*:* Versions up to 2.1.12 Vulnerable ·Useragent Project
Remediation
- Fix · GHSA-pjmx-9xr3-82qr useragent (npm) Fixed in 2.1.13 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Mobile Application Platform 4 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16030
- 2026-10-03 Alias added: GHSA-pjmx-9xr3-82qr
References
More Useragent Project Useragent vulnerabilities
- TI-2020-16132 GHSL-2020-312: Regular Expression Denial of Service (ReDoS) in useragent CVSS 4.0HIGH 8.7
Sources
- CVE-2017-16030 · CVE Program
- CVE-2017-16030 · NVD
- FIRST EPSS
- GHSA-pjmx-9xr3-82qr · GitHub Advisory Database · CC BY 4.0
- CVE-2017-16030 · Red Hat security data · CC BY 4.0
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