Vulnerability Database · PyPI · Package report

</h3>: vulnerability history, versions and safety

</h3> is a package in the PyPI ecosystem. Vulert holds no vulnerabilities for it yet.

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0 vulnerabilities recorded

Nothing recorded for this package in the PyPI ecosystem.

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0 with no fix published

Every vulnerability has a patched version to move to.

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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.

Vulert verdict on </h3> 4.5.0 i

Updated on 23 Oct 2026

Good news: 4.5.0, the version you would install today, has no known vulnerabilities.

Package health score 78/100
  • Security Minor issues
  • Maintenance Sustainable
  • Popularity Widely used
  • Community Quiet

What to do: Stay on 4.5.0 or newer. This can change: a vulnerability disclosed tomorrow can affect 4.5.0 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 4.5.0 — unaffected i
  • Vulnerabilities on record 0 i
  • Highest CVSS n/a i
  • With no published fix 0 i
  • Depended on by 172 packages i
  • Stars 1,045 i
  • OpenSSF scorecard 4/10 i
  • Last release 4 months ago i
  • Licence non-standard i
  • Similar names h2, nh3 i

Version list, release dates, licence and dependants published by PyPI, 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 </h3>, 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
4.5.0 30 May 2026 none non-standard — Details →
4.5.0a3 28 May 2026 none non-standard — Details →
4.5.0a2 28 Feb 2026 none non-standard — Details →
4.5.0a1 26 Feb 2026 none non-standard — Details →
4.4.2 29 Jan 2026 none non-standard — Details →
4.4.1 15 Dec 2025 none non-standard — Details →
4.3.1 10 Aug 2025 none non-standard — Details →
4.3.0 18 Jun 2025 none non-standard — Details →
4.2.2 10 Mar 2025 none non-standard — Details →
4.2.1 31 Jan 2025 none non-standard — Details →
4.2.0 27 Jan 2025 none non-standard — Details →
4.1.2 27 Oct 2024 none non-standard — Details →
4.1.1 14 Oct 2024 none non-standard — Details →
4.1.0 14 Oct 2024 none non-standard — Details →
4.1.0b3 06 Oct 2024 none non-standard — Details →
4.1.0b2 27 Sep 2024 none non-standard — Details →
4.1.0b1 27 Sep 2024 none non-standard — Details →
4.0.0b7 04 Sep 2024 none non-standard — Details →
4.0.0b6 04 Sep 2024 none Apache-2.0 — Details →
4.0.0b5 19 May 2024 none Apache-2.0 — Details →
4.0.0b4 14 Apr 2024 none Apache-2.0 — Details →
4.0.0b3 12 Mar 2024 none Apache-2.0 — Details →
3.7.7 09 Mar 2024 none Apache-2.0 — Details →
3.7.6 24 Nov 2022 none Apache-2.0 — Details →
4.0.0b2 24 Nov 2022 none Apache-2.0 — Details →
4.0.0b1 23 Aug 2022 none Apache-2.0 — Details →
3.7.4 15 Apr 2022 none Apache-2.0 — Details →
3.7.3 13 Jun 2021 none Apache-2.0 — Details →
3.7.2 02 Mar 2021 none Apache-2.0 — Details →
3.7.1 18 Dec 2020 none Apache-2.0 — Details →
3.7.0 02 Oct 2020 none Apache-2.0 — Details →
3.6.4 20 Jul 2020 none Apache-2.0 — Details →
3.6.3 04 Jun 2020 none Apache-2.0 — Details →
3.6.2 03 Jun 2020 none Apache-2.0 — Details →
3.6.1 29 May 2020 none Apache-2.0 — Details →
3.6.1a5 27 May 2020 none Apache-2.0 — Details →
3.6.1a1 26 May 2020 none Apache-2.0 — Details →
3.4.3 23 Apr 2019 none Apache-2.0 — Details →
3.4.2 05 Mar 2019 none Apache-2.0 — Details →
3.4.1 21 Feb 2019 none Apache-2.0 — Details →
3.1.0 07 Sep 2018 none — — Details →
3.0.9 07 Sep 2018 none — — Details →
3.0.0 31 Jul 2018 none — — Details →
2.9.0 31 Jul 2018 none — — Details →

All 44 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

No dated vulnerabilities are recorded for this package yet.

03 Vulnerabilities

Recorded vulnerabilities for </h3>

No vulnerability write-ups match this view

Search all 0 in the database →

No vulnerabilities match this view.

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 </h3>

Is </h3> safe to use?

Vulert has no vulnerabilities on record for </h3> in PyPI at this point. That is a good signal rather than a guarantee: new vulnerabilities are published for packages all the time, so the versions you actually run are still worth monitoring.

What is </h3>'s Vulert package health score?

Vulert scores </h3> 78/100, which reads as in good shape. 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).

Is the latest version of </h3> affected?

No. 4.5.0, the version you would install today, has no vulnerabilities on record against it. Earlier releases do — the version table above lists each release with what affects it.

Which version of </h3> should I use?

4.5.0 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 </h3> have?

0 vulnerabilities are recorded for </h3> in the PyPI ecosystem: 0 critical, 0 high, 0 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 </h3> vulnerabilities disclosed?

0 vulnerabilities were recorded for </h3> in the last 12 months. 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 </h3> 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 </h3> for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the </h3> version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.