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Vulnerability Database · npm · Package report

workerd: vulnerability history, versions and safety

workerd is a package in the npm ecosystem. Vulert records 1 vulnerability for it across 0 release, first recorded in May 2023. 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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1 vulnerabilities recorded M1
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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.

See all workerd vulnerabilities

Vulert verdict on workerd 1.20261023.1 i

Updated on 23 Oct 2026

Good news: 1.20261023.1, the version you would install today, has no known vulnerabilities. Older releases do — the table below lists all 1.

Package health score 95/100
  • Security No known security issues
  • Maintenance Sustainable
  • Popularity Key ecosystem project
  • Community Active

What to do: Stay on 1.20261023.1 or newer. This can change: a vulnerability disclosed tomorrow can affect 1.20261023.1 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 1.20261023.1 — unaffected i
  • Vulnerabilities on record 1 over 1 year · 0 in the last year i
  • Latest disclosure 12 May 2023 i
  • Highest CVSS 6.5 i
  • With no published fix 0 i
  • Stars 9,031 i
  • Last release this month i
  • Licence Apache-2.0 i

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

Concerned about your application's security?

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01 Versions

Which versions are affected

Every version Vulert tracks for workerd, 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
1.20261023.1 23 Oct 2026 none Apache-2.0 — Details →
1.20261022.1 22 Oct 2026 none Apache-2.0 — Details →
1.20261021.1 21 Oct 2026 none Apache-2.0 — Details →
1.20261019.1 19 Oct 2026 none Apache-2.0 — Details →
1.20261018.1 18 Oct 2026 none Apache-2.0 — Details →
1.20261016.1 16 Oct 2026 none Apache-2.0 — Details →
1.20261015.1 15 Oct 2026 none Apache-2.0 — Details →
1.20261014.1 14 Oct 2026 none Apache-2.0 — Details →
1.20261013.1 13 Oct 2026 none Apache-2.0 — Details →
1.20261012.1 12 Oct 2026 none Apache-2.0 — Details →
1.20261011.1 11 Oct 2026 none Apache-2.0 — Details →
1.20261010.1 10 Oct 2026 none Apache-2.0 — Details →
1.20261009.1 09 Oct 2026 none Apache-2.0 — Details →
1.20261008.1 08 Oct 2026 none Apache-2.0 — Details →
1.20261007.1 07 Oct 2026 none Apache-2.0 — Details →
1.20261006.1 06 Oct 2026 none Apache-2.0 — Details →
1.20261005.1 05 Oct 2026 none Apache-2.0 — Details →
1.20261004.1 04 Oct 2026 none Apache-2.0 — Details →
1.20261002.1 02 Oct 2026 none Apache-2.0 — Details →
1.20261001.1 01 Oct 2026 none Apache-2.0 — Details →
1.20260930.2 30 Sep 2026 none Apache-2.0 — Details →
1.20260930.1 30 Sep 2026 none Apache-2.0 — Details →
1.20260929.1 29 Sep 2026 none Apache-2.0 — Details →
1.20260928.1 28 Sep 2026 none Apache-2.0 — Details →
1.20260927.1 27 Sep 2026 none Apache-2.0 — Details →
1.20260926.1 26 Sep 2026 none Apache-2.0 — Details →
1.20260925.2 25 Sep 2026 none Apache-2.0 — Details →
1.20260925.1 25 Sep 2026 none Apache-2.0 — Details →
1.20260924.1 24 Sep 2026 none Apache-2.0 — Details →
1.20260923.1 23 Sep 2026 none Apache-2.0 — Details →
1.20260922.1 22 Sep 2026 none Apache-2.0 — Details →
1.20260921.1 21 Sep 2026 none Apache-2.0 — Details →
1.20260920.1 20 Sep 2026 none Apache-2.0 — Details →
1.20260919.1 19 Sep 2026 none Apache-2.0 — Details →
1.20260918.1 18 Sep 2026 none Apache-2.0 — Details →
1.20260917.1 17 Sep 2026 none Apache-2.0 — Details →
1.20260916.1 16 Sep 2026 none Apache-2.0 — Details →
1.20260915.1 15 Sep 2026 none Apache-2.0 — Details →
1.20260914.1 14 Sep 2026 none Apache-2.0 — Details →
1.20260911.1 11 Sep 2026 none Apache-2.0 — Details →
1.20260910.1 10 Sep 2026 none Apache-2.0 — Details →
1.20260908.1 08 Sep 2026 none Apache-2.0 — Details →
1.20260907.1 07 Sep 2026 none Apache-2.0 — Details →
1.20260906.1 06 Sep 2026 none Apache-2.0 — Details →
1.20260905.1 05 Sep 2026 none Apache-2.0 — Details →
1.20260904.1 04 Sep 2026 none Apache-2.0 — Details →
1.20260903.1 03 Sep 2026 none Apache-2.0 — Details →
1.20260902.1 02 Sep 2026 none Apache-2.0 — Details →
1.20260901.1 01 Sep 2026 none Apache-2.0 — Details →
1.20260831.1 31 Aug 2026 none Apache-2.0 — Details →
1.20260830.1 30 Aug 2026 none Apache-2.0 — Details →
1.20260829.1 29 Aug 2026 none Apache-2.0 — Details →
1.20260828.1 28 Aug 2026 none Apache-2.0 — Details →
1.20260827.1 27 Aug 2026 none Apache-2.0 — Details →
1.20260826.1 26 Aug 2026 none Apache-2.0 — Details →
1.20260825.1 25 Aug 2026 none Apache-2.0 — Details →
1.20260824.1 24 Aug 2026 none Apache-2.0 — Details →
1.20260823.1 23 Aug 2026 none Apache-2.0 — Details →
1.20260822.1 22 Aug 2026 none Apache-2.0 — Details →
1.20260821.1 21 Aug 2026 none Apache-2.0 — Details →
1.20260820.1 20 Aug 2026 none Apache-2.0 — Details →
1.20260819.1 19 Aug 2026 none Apache-2.0 — Details →
1.20260818.1 18 Aug 2026 none Apache-2.0 — Details →
1.20260817.1 17 Aug 2026 none Apache-2.0 — Details →
1.20260816.1 16 Aug 2026 none Apache-2.0 — Details →
1.20260815.1 15 Aug 2026 none Apache-2.0 — Details →
1.20260814.1 14 Aug 2026 none Apache-2.0 — Details →
1.20260813.1 13 Aug 2026 none Apache-2.0 — Details →
1.20260812.1 12 Aug 2026 none Apache-2.0 — Details →
1.20260811.1 11 Aug 2026 none Apache-2.0 — Details →
1.20260810.1 10 Aug 2026 none Apache-2.0 — Details →
1.20260809.1 09 Aug 2026 none Apache-2.0 — Details →
1.20260808.1 08 Aug 2026 none Apache-2.0 — Details →
1.20260807.2 07 Aug 2026 none Apache-2.0 — Details →
1.20260804.1 04 Aug 2026 none Apache-2.0 — Details →
1.20260801.1 01 Aug 2026 none Apache-2.0 — Details →
1.20260731.1 31 Jul 2026 none Apache-2.0 — Details →
1.20260730.1 30 Jul 2026 none Apache-2.0 — Details →
1.20260729.1 29 Jul 2026 none Apache-2.0 — Details →
1.20260728.1 28 Jul 2026 none Apache-2.0 — Details →
1.20260727.1 27 Jul 2026 none Apache-2.0 — Details →
1.20260726.1 26 Jul 2026 none Apache-2.0 — Details →
1.20260724.1 24 Jul 2026 none Apache-2.0 — Details →
1.20260723.1 23 Jul 2026 none Apache-2.0 — Details →
1.20260722.1 22 Jul 2026 none Apache-2.0 — Details →
1.20260721.1 21 Jul 2026 none Apache-2.0 — Details →
1.20260719.1 19 Jul 2026 none Apache-2.0 — Details →
1.20260718.1 18 Jul 2026 none Apache-2.0 — Details →
1.20260717.1 17 Jul 2026 none Apache-2.0 — Details →
1.20260716.1 16 Jul 2026 none Apache-2.0 — Details →
1.20260715.1 15 Jul 2026 none Apache-2.0 — Details →
1.20260714.1 14 Jul 2026 none Apache-2.0 — Details →
1.20260713.1 13 Jul 2026 none Apache-2.0 — Details →
1.20260712.1 12 Jul 2026 none Apache-2.0 — Details →
1.20260711.1 11 Jul 2026 none Apache-2.0 — Details →
1.20260710.1 10 Jul 2026 none Apache-2.0 — Details →
1.20260708.1 08 Jul 2026 none Apache-2.0 — Details →
1.20260707.1 07 Jul 2026 none Apache-2.0 — Details →
1.20260706.1 06 Jul 2026 none Apache-2.0 — Details →
1.20260705.1 05 Jul 2026 none Apache-2.0 — Details →
1.20260704.1 04 Jul 2026 none — — Details →
1.20260703.1 03 Jul 2026 none — — Details →
1.20260702.1 02 Jul 2026 none — — Details →
1.20260701.1 01 Jul 2026 none — — Details →
1.20260630.1 30 Jun 2026 none — — Details →
1.20260629.1 29 Jun 2026 none — — Details →
1.20260628.1 28 Jun 2026 none — — Details →
1.20260627.1 27 Jun 2026 none — — Details →
1.20260626.1 26 Jun 2026 none — — Details →
1.20260625.1 25 Jun 2026 none — — Details →
1.20260624.1 24 Jun 2026 none — — Details →
1.20260623.1 23 Jun 2026 none — — Details →
1.20260621.1 21 Jun 2026 none — — Details →
1.20260620.1 20 Jun 2026 none — — Details →
1.20260619.1 19 Jun 2026 none — — Details →
1.20260617.1 17 Jun 2026 none — — Details →
1.20260616.1 16 Jun 2026 none — — Details →
1.20260615.1 15 Jun 2026 none — — Details →
1.20260613.1 13 Jun 2026 none — — Details →
1.20260612.1 12 Jun 2026 none — — Details →

The newest 120 of 564 versions Vulert tracks. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2023 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 1 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for workerd

The 1 most severe of 1 vulnerabilities recorded for this package

Search all 1 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2023-2512: Buffer under-read in workerd 6.5 medium 1.20230419.0 12 May 2023

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 workerd

Is workerd safe to use?

Vulert records 1 vulnerabilities for workerd in npm: 0 critical, 0 high, 1 medium and 0 low. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

What is workerd's Vulert package health score?

Vulert scores workerd 95/100, 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 workerd affected?

No. 1.20261023.1, 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 workerd have?

1 vulnerability is recorded for workerd in the npm ecosystem: 0 critical, 0 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 workerd vulnerabilities disclosed?

0 vulnerabilities were recorded for workerd in the last 12 months, and the oldest entry in this database dates to 12 May 2023. 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 workerd 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 workerd for upcoming vulnerabilities?

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