Vulnerability Database · npm · useragent · Version
useragent 1.0.3
1.0.3 is affected by 2 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 2.3.0.
Critical 0 High 1 Medium 1 Low 0 Unrated 0
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Released 17 Nov 2011
Licence MIT
Also known from other sources 2
Newer releases 39
Database updated 23/Oct/2026
Release and licence data published by the npm registry. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
useragent 1.0.3 vulnerabilities
2 vulnerabilities cover useragent 1.0.3. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2020-26311: useragent Package Regular Expression Denial of Service Vulnerability | 7.5 medium | No fix published | 26 Oct 2024 |
| CVE-2017-16030: useragent - ReDoS via long UserAgent header | N/A high | 2.1.13 | 24 Jul 2018 |
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Questions
About useragent 1.0.3
Is useragent 1.0.3 vulnerable?
Yes. 2 vulnerabilities in the Vulert database cover useragent 1.0.3: 0 critical, 1 high, 1 medium and 0 low. The upgrade Vulert recommends is 2.3.0, and each entry above names the fixed version to move to.
Which version of useragent should I use instead of 1.0.3?
2.3.0 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.
Is 1.0.3 the latest release of useragent?
No. 1.0.3 was published 17 Nov 2011, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor useragent for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the useragent version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.