High severity7.5NVD Advisory· Published Jun 4, 2018· Updated Jun 17, 2026
CVE-2017-16030
CVE-2017-16030
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
useragentnpm | < 2.1.13 | 2.1.13 |
Affected products
2- HackerOne/useragent node modulev5Range: <=2.1.12
Patches
Vulnerability mechanics
References
4- nodesecurity.io/advisories/312nvdExploitThird Party Advisory
- github.com/advisories/GHSA-pjmx-9xr3-82qrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-16030ghsaADVISORY
- www.npmjs.com/advisories/312ghsaWEB
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