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Vulnerability Database · Hex · Package report

plug_cowboy: vulnerability history, versions and safety

plug_cowboy is a package in the Hex ecosystem. Vulert records 2 vulnerabilities for it across 26 releases, from Apr 2026 to May 2026. 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 U1
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0 with no fix published

Every vulnerability has a patched version to move to.

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2 in the last 12 months

Most recent disclosure 05 May 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all plug_cowboy vulnerabilities

Vulert verdict on plug_cowboy 2.9.0 i

Updated on 23 Oct 2026

Good news: 2.9.0, the version you would install today, has no known vulnerabilities. Older releases do — the table below lists all 2.

Package health score 91/100
  • Security Minor issues
  • Maintenance Sustainable
  • Popularity Key ecosystem project
  • Community Not enough data

What to do: Stay on 2.9.0 or newer. This can change: a vulnerability disclosed tomorrow can affect 2.9.0 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 2.9.0 — unaffected i
  • Vulnerabilities on record 2 over 1 year · 2 in the last year i
  • Latest disclosure 05 May 2026 i
  • Highest CVSS 8.7 i
  • With no published fix 0 i
  • Depended on by 142,870,574 packages i
  • Last release 3 months ago i

Version list, release dates, licence and dependants published by hex.pm, refreshed 22 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for plug_cowboy, 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
2.9.0 25 Jun 2026 none — — Details →
2.8.1 27 Apr 2026 none — — Details →
2.8.0 05 Feb 2026 H1 U1 — Yes Details →
2.7.5 12 Nov 2025 H1 U1 — Yes Details →
2.7.4 18 Jun 2025 H1 U1 — Yes Details →
2.7.3 25 Feb 2025 H1 U1 — Yes Details →
2.7.2 09 Sep 2024 H1 U1 — Yes Details →
2.7.1 03 Apr 2024 H1 U1 — Yes Details →
2.7.0 29 Jan 2024 H1 U1 — Yes Details →
2.6.2 22 Jan 2024 H1 U1 — Yes Details →
2.6.1 16 Mar 2023 H1 U1 — Yes Details →
2.6.0 31 Oct 2022 H1 U1 — Yes Details →
2.5.2 07 Sep 2021 H1 U1 — Yes Details →
2.5.1 22 Jul 2021 H1 U1 — Yes Details →
2.5.0 19 Apr 2021 H1 U1 — Yes Details →
2.4.1 31 Oct 2020 H1 U1 — Yes Details →
2.4.0 11 Oct 2020 H1 U1 — Yes Details →
2.3.0 11 Jun 2020 H1 U1 — Yes Details →
2.2.2 25 May 2020 H1 U1 — Yes Details →
2.2.1 21 Apr 2020 H1 U1 — Yes Details →
2.2.0 21 Apr 2020 H1 U1 — Yes Details →
2.1.3 14 Apr 2020 H1 U1 — Yes Details →
2.1.2 28 Jan 2020 H1 U1 — Yes Details →
2.1.1 08 Jan 2020 H1 U1 — Yes Details →
2.1.0 27 Jun 2019 H1 U1 — Yes Details →
2.0.2 18 Mar 2019 H1 U1 — Yes Details →
2.0.1 13 Dec 2018 H1 U1 — Yes Details →
2.0.0 20 Oct 2018 H1 U1 — Yes Details →
1.0.0 20 Oct 2018 none — — Details →

All 29 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2026 2

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

03 Vulnerabilities

Recorded vulnerabilities for plug_cowboy

The 2 most severe of 2 vulnerabilities recorded for this package

Search all 2 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2026-32688: plug_cowboy Atom Table Exhaustion via HTTP/2 :scheme Pseudo-header 8.7 high 2.8.1 27 Apr 2026
CVE-2026-32688: Plug.Cowboy Denial-of-Service Vulnerability via HTTP/2 Atom Table Exhaustion 8.7 high 2.8.1 05 May 2026

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 plug_cowboy

Is plug_cowboy safe to use?

Vulert records 2 vulnerabilities for plug_cowboy in Hex: 0 critical, 1 high, 0 medium and 0 low, plus 1 not yet rated. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

What is plug_cowboy's Vulert package health score?

Vulert scores plug_cowboy 91/100, which reads as healthy. 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 plug_cowboy affected?

No. 2.9.0, 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.

How many vulnerabilities does plug_cowboy have?

2 vulnerabilities are recorded for plug_cowboy in the Hex ecosystem: 0 critical, 1 high, 0 medium and 0 low, plus 1 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new plug_cowboy vulnerabilities disclosed?

2 vulnerabilities were recorded for plug_cowboy in the last 12 months, and the oldest entry in this database dates to 27 Apr 2026. 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 plug_cowboy 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 plug_cowboy for upcoming vulnerabilities?

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