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Vulnerability Database · Go · Package report

github.com/v2fly/v2ray-core/v4: vulnerability history, versions and safety

github.com/v2fly/v2ray-core/v4 is a package in the Go ecosystem. Vulert records 1 vulnerability for it across 120 releases, first recorded in Feb 2022. 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 C1
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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 github.com/v2fly/v2ray-core/v4 vulnerabilities

Vulert verdict on github.com/v2fly/v2ray-core/v4 v4.45.2 i

Updated on 23 Oct 2026

Action needed: v4.45.2 has 1 known vulnerability, but every one of them has a fix. Upgrade to the version listed below and you are clear.

Package health score 73/100
  • Security Minor issues
  • Maintenance Slowing
  • Popularity Key ecosystem project
  • Community Moderate

What to do: Upgrade to the version that resolves each vulnerability below. Fix it, then keep watch: this version is affected today, and the next one may be too — Vulert alerts you when a new vulnerability lands. Monitor it with Vulert →

  • Current release v4.45.2 — affected i
  • Vulnerabilities on record 1 over 1 year · 0 in the last year i
  • Latest disclosure 24 Feb 2022 i
  • Highest CVSS 9.1 i
  • With no published fix 0 i
  • Stars 34,685 i
  • OpenSSF scorecard 5/10 i
  • Last release 52 months ago i
  • Licence MIT i

Version list, release dates, licence and dependants published by the Go module proxy, 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 github.com/v2fly/v2ray-core/v4, 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
v4.45.2 12 Jun 2022 C1 MIT Yes Details →
v4.45.1 12 Jun 2022 C1 MIT Yes Details →
v4.45.0 29 Apr 2022 C1 MIT Yes Details →
v4.42.2-0.20220102150842-9f0d7e7f4027 02 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220102150647-9f6c65eeefec 02 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220102133607-25ae87aad2c1 02 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220102091612-d24c276cc5a9 02 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220101040041-e8949234fd8c 01 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220101031009-1ebb5640473a 01 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20220101001133-36cfbed18057 01 Jan 2022 C1 MIT Yes Details →
v4.42.2-0.20211227062811-ef58fde0ba5f 27 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211227043308-b057a37fd642 27 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211223051443-423d566024b8 23 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211222145111-79f751662c8e 22 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211212101021-fa61371102bc 12 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211211032238-e3610870d1e8 11 Dec 2021 C1 MIT Yes Details →
v4.44.1-0.20211206161809-956377d87f90 06 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211206140350-1a04abc8202e 06 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211206132211-31a10d5e0f3a 06 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211205194010-144a7929d8fe 05 Dec 2021 C1 MIT Yes Details →
v4.44.0 05 Dec 2021 C1 MIT Yes Details →
v4.43.1-0.20211205191720-c1af2bfd7aa5 05 Dec 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224916-b960d3f1fb98 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-1a3d6eeca8df 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-3e42fc417ba6 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-44272fa82f0a 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-499a0e19cb23 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-4cf9992f8949 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-6e7e864f2fb9 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-718922b0475f 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-a47fcffe5055 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-dc709f56dd62 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128224902-fb4ad3f5fa98 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211128085537-801d4a1d606e 28 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211127091641-dce8764fd7c6 27 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211127063207-43447aa2e42a 27 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211127051457-cbb6d7a509db 27 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211122061325-7413246fb81e 22 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211119034000-8107b73082cd 19 Nov 2021 C1 MIT Yes Details →
v4.0.0-20211116021009-bd21b9329a69 16 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211116021009-bd21b9329a69 16 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211113142443-65174fa487d5 13 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211106141826-1490ce645d3a 06 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211106074806-c25e33c4232e 06 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211105052446-ed9641dad1ab 05 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211103051106-5dedf7d95197 03 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211103032839-5f86668cebaa 03 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211101032857-05f96fc4346a 01 Nov 2021 C1 MIT Yes Details →
v4.42.2-0.20211031104106-b467f44ef04f 31 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211031100720-5931240fb19b 31 Oct 2021 C1 MIT Yes Details →
v4.41.2-0.20211028103419-a66bb28aee66 28 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211028103419-a66bb28aee66 28 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211028051537-0f1e21cebac6 28 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211026151635-e3d966a7567e 26 Oct 2021 C1 MIT Yes Details →
v4.43.1-0.20211023144024-6fae62207a16 23 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211023034103-3f1a415ce55b 23 Oct 2021 C1 MIT Yes Details →
v4.42.2-0.20211021223453-37f1b98cb248 21 Oct 2021 C1 MIT Yes Details →
v4.43.1-0.20211015125655-7b0699e8a545 15 Oct 2021 C1 MIT Yes Details →
v4.43.0 02 Oct 2021 C1 MIT Yes Details →
v4.42.3-0.20210930123742-b3e0d54630c1 30 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210928173456-a9979057dcaa 28 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210926165631-deb9d0848750 26 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210926162944-b25a9e531c42 26 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210926061525-0054bff7be20 26 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210925031815-f66575ade0af 25 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210924054634-c278db5b77f5 24 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210920225921-70c796b7eeb6 20 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210920031504-c334a4ed3c18 20 Sep 2021 C1 MIT Yes Details →
v4.42.3-0.20210917195716-a0a97c000376 17 Sep 2021 C1 MIT Yes Details →
v4.42.2 17 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210911020754-c58a372d93e2 11 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210909040913-4a174e8aa66c 09 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210905093236-5ce183c256bd 05 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210904234715-98bf3dc79a07 04 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210904154907-3ebc36523022 04 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210904122004-4549dba2d737 04 Sep 2021 C1 MIT Yes Details →
v4.0.0-20210904100958-12dfbc78a306 04 Sep 2021 C1 MIT Yes Details →
v4.0.0-20210904100958-ec1694beb1ae 04 Sep 2021 C1 MIT Yes Details →
v4.42.2-0.20210904092452-d7e52c2f65eb 04 Sep 2021 C1 MIT Yes Details →
v4.42.1 03 Sep 2021 C1 MIT Yes Details →
v4.42.0 03 Sep 2021 C1 MIT Yes Details →
v4.41.2-0.20210901213413-a53fd35205c8 01 Sep 2021 C1 MIT Yes Details →
v4.41.2-0.20210829082410-46fa8f74806c 29 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210826153959-50bcb6831c37 26 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210823114619-4f9415d00170 23 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210821064538-c91f98c60d4f 21 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210818051813-e39a69e68816 18 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210812222619-729cd06beebd 12 Aug 2021 C1 MIT Yes Details →
v4.41.2-0.20210806024215-256a3fdab370 06 Aug 2021 C1 MIT Yes Details →
v4.41.1 30 Jul 2021 C1 MIT Yes Details →
v4.0.0-20210722024321-470acefef6aa 22 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210722024321-470acefef6aa 22 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210719151311-e2d526cd8b4d 19 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210716071358-8fed55f69f00 16 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210713015332-236a7cc38ffb 13 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210701180227-91a228606484 01 Jul 2021 C1 MIT Yes Details →
v4.41.1-0.20210630183337-54fc21e537dd 30 Jun 2021 C1 MIT Yes Details →
v4.41.1-0.20210623023902-e5913a132a66 23 Jun 2021 C1 MIT Yes Details →
v4.41.0 22 Jun 2021 C1 MIT Yes Details →
v4.40.1 22 Jun 2021 C1 MIT Yes Details →
v4.40.1-0.20210616054950-c39cff3aa497 16 Jun 2021 C1 — Yes Details →
v4.40.1-0.20210615023916-92bb1688fd56 15 Jun 2021 C1 — Yes Details →
v4.40.0 04 Jun 2021 C1 — Yes Details →
v4.39.3-0.20210526000851-de76a21e98ca 26 May 2021 C1 — Yes Details →
v4.39.2 25 May 2021 C1 — Yes Details →
v4.39.1 09 May 2021 C1 — Yes Details →
v4.39.1-0.20210506143335-31a7fb503c64 06 May 2021 C1 — Yes Details →
v4.39.0 06 May 2021 C1 — Yes Details →
v4.38.4-0.20210505023412-736379d22dea 05 May 2021 C1 — Yes Details →
v4.38.4-0.20210504110550-51c8ab83380e 04 May 2021 C1 — Yes Details →
v4.38.4-0.20210501142823-980fb598781e 01 May 2021 C1 — Yes Details →
v4.38.3 30 Apr 2021 C1 — Yes Details →
v4.38.2 29 Apr 2021 C1 — Yes Details →
v4.38.2-0.20210428154401-dbfc2138e40e 28 Apr 2021 C1 — Yes Details →
v4.38.1 26 Apr 2021 C1 — Yes Details →
v4.38.1-0.20210422001252-a21e4a7deb2d 22 Apr 2021 C1 — Yes Details →
v4.38.1-0.20210418224551-8ba4ac15acb9 18 Apr 2021 C1 — Yes Details →
v4.38.1-0.20210418073804-3a51c255eb98 18 Apr 2021 C1 — Yes Details →
v4.37.4-0.20210417100344-7dce725f8745 17 Apr 2021 C1 — Yes Details →
v4.38.0 17 Apr 2021 C1 — Yes Details →

The newest 120 of 173 versions Vulert tracks. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2022 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 github.com/v2fly/v2ray-core/v4

The 1 most severe of 1 vulnerabilities recorded for this package

Search all 1 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2021-4070: Off-by-one Error in v2fly/v2ray-core 9.1 critical 4.44.0 24 Feb 2022

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 github.com/v2fly/v2ray-core/v4

Is github.com/v2fly/v2ray-core/v4 safe to use?

Vulert records 1 vulnerabilities for github.com/v2fly/v2ray-core/v4 in Go: 1 critical, 0 high, 0 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 github.com/v2fly/v2ray-core/v4's Vulert package health score?

Vulert scores github.com/v2fly/v2ray-core/v4 73/100, 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 github.com/v2fly/v2ray-core/v4 affected?

Yes. v4.45.2, the version you would install today, has 1 known vulnerability, and every one of them has a published fix. Upgrade to the version listed for each.

Which version of github.com/v2fly/v2ray-core/v4 should I use?

v4.45.2 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 github.com/v2fly/v2ray-core/v4 have?

1 vulnerability is recorded for github.com/v2fly/v2ray-core/v4 in the Go ecosystem: 1 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 github.com/v2fly/v2ray-core/v4 vulnerabilities disclosed?

0 vulnerabilities were recorded for github.com/v2fly/v2ray-core/v4 in the last 12 months, and the oldest entry in this database dates to 24 Feb 2022. 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 github.com/v2fly/v2ray-core/v4 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 github.com/v2fly/v2ray-core/v4 for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the github.com/v2fly/v2ray-core/v4 version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.