Packages / undici / Security

HighVulnerabilityGHSA-rfgv-xxqx-mfg5Published 29 Sept 2026

undici vulnerable to Denial of Service via unrequested WebSocket subprotocol

Affected · undici

  • >= 6.7.0, < 6.28.1
  • >= 7.0.0, < 7.29.1
  • >= 8.0.0, < 8.10.2

Fixed in

8.10.2

npm install undici@8.10.2

  1. Not affected

    0.1.0 – 6.6.2

    163 releases

  2. Affected

    6.7.0 – 6.28.0

    43 releases

  3. Fixed

    6.28.1 – 6.29.1

    3 releases

  4. Affected

    7.0.0 – 7.29.0

    48 releases

  5. Fixed

    7.29.1 – 7.30.1

    3 releases

  6. Affected

    8.0.0 – 8.10.1

    16 releases

  7. Fixed

    8.10.2 – 8.12.3

    8 releases, latest

284 stable releases of undici, oldest to newest.

What happens

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