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Vulnerability Database · npm · Package report

useragent: vulnerability history, versions and safety

useragent is a package in the npm ecosystem. Vulert records 2 vulnerabilities for it across 39 releases, from Jul 2018 to Oct 2024. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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2 vulnerabilities recorded H1 M1
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1 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
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0 in the last 12 months

Nothing new recorded in the last year.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all useragent vulnerabilities

Vulert verdict on useragent 2.3.0 i

Updated on 23 Oct 2026

Careful: 2.3.0 has 1 known vulnerability, and 1 has no fix yet. Use an earlier safe version, or the workaround listed for each one.

Package health score 60/100
  • Security Some issues to review
  • Maintenance Slowing
  • Popularity Widely used
  • Community Quiet

The current release has a vulnerability with no published fix, which caps this score.

What to do: Pin an earlier, unaffected release if you can, and apply the workaround each vulnerability lists until a fix is published. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Current release 2.3.0 — affected i
  • Vulnerabilities on record 2 over 6 years · 0 in the last year i
  • Latest disclosure 26 Oct 2024 i
  • Highest CVSS 7.5 i
  • With no published fix 1 i
  • Depended on by 3,960 packages i
  • Stars 912 i
  • OpenSSF scorecard 1/10 i
  • Last release 104 months ago i
  • Licence MIT i

Version list, release dates, licence and dependants published by the npm registry, refreshed 23 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for useragent, newest first, with the vulnerabilities recorded against each one. A version showing none has no vulnerability in the Vulert database — open it for the full picture on that release.

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Version Released Vulert vulnerabilities Licence Fix published Details
2.3.0 30 Jan 2018 M1 MIT No Details →
2.2.1 12 Jul 2017 M1 MIT No Details →
2.2.0 04 Jul 2017 M1 MIT No Details →
2.1.13 27 Mar 2017 M1 MIT No Details →
2.1.12 06 Feb 2017 H1 M1 MIT No Details →
2.1.11 19 Jan 2017 H1 M1 MIT No Details →
2.1.10 21 Dec 2016 H1 M1 MIT No Details →
2.1.9 23 Mar 2016 H1 M1 MIT No Details →
2.1.8 04 Dec 2015 H1 M1 MIT No Details →
2.1.7 18 Jun 2015 H1 M1 MIT No Details →
2.1.6 01 May 2015 H1 M1 MIT No Details →
2.1.5 26 Jan 2015 H1 M1 MIT No Details →
2.1.4 26 Jan 2015 H1 M1 MIT No Details →
2.1.3 21 Nov 2014 H1 M1 MIT No Details →
2.1.2 18 Nov 2014 H1 M1 MIT No Details →
2.1.1 29 Oct 2014 H1 M1 MIT No Details →
2.1.0 22 Sep 2014 H1 M1 MIT No Details →
2.0.10 22 Sep 2014 H1 M1 MIT No Details →
2.0.9 04 Jul 2014 H1 M1 MIT No Details →
2.0.8 17 Mar 2014 H1 M1 MIT No Details →
2.0.7 29 Jul 2013 H1 M1 MIT No Details →
2.0.6 03 Jun 2013 H1 M1 MIT No Details →
2.0.5 02 Jun 2013 H1 M1 MIT No Details →
2.0.4 19 Apr 2013 H1 M1 MIT No Details →
2.0.3 05 Mar 2013 H1 M1 MIT No Details →
2.0.2 24 Feb 2013 H1 M1 MIT No Details →
2.0.1 01 Feb 2013 H1 M1 MIT No Details →
2.0.0 09 Jan 2013 H1 M1 MIT No Details →
1.1.0 11 Jun 2012 H1 M1 MIT No Details →
1.0.6 02 Apr 2012 H1 M1 MIT No Details →
1.0.5 11 Jan 2012 H1 M1 MIT No Details →
1.0.4 11 Dec 2011 H1 M1 MIT No Details →
1.0.3 17 Nov 2011 H1 M1 MIT No Details →
1.0.2 19 Oct 2011 H1 M1 MIT No Details →
1.0.1 02 Oct 2011 H1 M1 MIT No Details →
1.0.0 01 Oct 2011 H1 M1 MIT No Details →
0.1.2 10 May 2011 H1 M1 MIT No Details →
0.1.0 29 Dec 2010 H1 M1 MIT No Details →
0.1.1 29 Dec 2010 H1 M1 MIT No Details →

All 39 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2018 1
  • 2024 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 2 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for useragent

The 2 most severe of 2 vulnerabilities recorded for this package

Search all 2 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

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About useragent

Is useragent safe to use?

Vulert records 2 vulnerabilities for useragent in npm: 0 critical, 1 high, 1 medium and 0 low. 1 of them has no published fix yet, so that is the one to avoid or mitigate.

What is useragent's Vulert package health score?

Vulert scores useragent 60/100, which reads as usable, but worth attention. The score weighs the vulnerability record (40), maintenance and release cadence (25), adoption from dependents and stars (20) and community signals such as the OpenSSF scorecard and forks (15). The current release has a vulnerability with no published fix, which caps this score.

Is the latest version of useragent affected?

Yes. 2.3.0, the version you would install today, has 1 known vulnerability, and 1 has no published fix yet. Use an earlier unaffected release, or the workaround each vulnerability lists.

Which version of useragent should I use?

2.3.0 is the version Vulert recommends for the affected releases. The version table above lists every release with the vulnerabilities recorded against it, so you can confirm the range you actually run.

How many vulnerabilities does useragent have?

2 vulnerabilities are recorded for useragent in the npm ecosystem: 0 critical, 1 high, 1 medium and 0 low. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new useragent vulnerabilities disclosed?

0 vulnerabilities were recorded for useragent in the last 12 months, and the oldest entry in this database dates to 24 Jul 2018. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of useragent are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

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.