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v20.20.0

nodejs/nodev20.20.0Jan 13, 2026by marco-ippolito

AI Summary

This LTS release is a security update containing the same CVE fixes as v24.13.0.

Key Highlights

  • CVE-2025-59465: Added TLSSocket default error handler
  • CVE-2025-55130: Require full read and write to symlink APIs
  • CVE-2025-55131: Refactor unsafe buffer creation
  • CVE-2026-21637: Route callback exceptions through error handlers

New Features

  • lib: add TLSSocket default error handler (CVE-2025-59465)
  • lib,permission: require full read and write to symlink APIs (CVE-2025-55130)
  • src,lib: refactor unsafe buffer creation (CVE-2025-55131)
  • src: rethrow stack overflow exceptions in async_hooks (CVE-2025-59466)
  • tls: route callback exceptions through error handlers (CVE-2026-21637)

Full Release Notes

This is a security release.

### Notable Changes

lib:

* (CVE-2025-55132) disable futimes when permission model is enabled (RafaelGSS) <https://github.com/nodejs-private/node-private/pull/802>
* (CVE-2025-59465) add TLSSocket default error handler (RafaelGSS) <https://github.com/nodejs-private/node-private/pull/797>
  lib,permission:
* (CVE-2025-55130) require full read and write to symlink APIs (RafaelGSS) <https://github.com/nodejs-private/node-private/pull/760>
  src:
* (CVE-2025-59466) rethrow stack overflow exceptions in async\_hooks (Matteo Collina) <https://github.com/nodejs-private/node-private/pull/773>
  src,lib:
* (CVE-2025-55131) refactor unsafe buffer creation to remove zero-fill toggle (Сковорода Никита Андреевич) <https://github.com/nodejs-private/node-private/pull/759>
  tls:
* (CVE-2026-21637) route callback exceptions through error handlers (Matteo Collina) <https://github.com/nodejs-private/node-private/pull/796>

### Commits

* \[[`8f9ba3f623`](https://github.com/nodejs/node/commit/8f9ba3f623)] - **deps**: update c-ares to v1.34.6 (Node.js GitHub Bot) [#60997](https://github.com/nodejs/node/pull/60997)
* \[[`97fc9b0eb7`](https://github.com/nodejs/node/commit/97fc9b0eb7)] - **deps**: update undici to 6.23.0 (Matteo Collina) [nodejs-private/node-private#792](https://github.com/nodejs-private/node-private/pull/792)
* \[[`14fbbb510c`](https://github.com/nodejs/node/commit/14fbbb510c)] - **(CVE-2025-55132)** **lib**: disable futimes when permission model is enabled (RafaelGSS) [nodejs-private/node-private#802](https://github.com/nodejs-private/node-private/pull/802)
* \[[`1febc48d5b`](https://github.com/nodejs/node/commit/1febc48d5b)] - **(CVE-2025-59465)** **lib**: add TLSSocket default error handler (RafaelGSS) [nodejs-private/node-private#797](https://github.com/nodejs-private/node-private/pull/797)
* \[[`494f62dc23`](https://github.com/nodejs/node/commit/494f62dc23)] - **(CVE-2025-55130)** **lib,permission**: require full read and write to symlink APIs (RafaelGSS) [nodejs-private/node-private#760](https://github.com/nodejs-private/node-private/pull/760)
* \[[`d7a5c587c0`](https://github.com/nodejs/node/commit/d7a5c587c0)] - **(CVE-2025-59466)** **src**: rethrow stack overflow exceptions in async\_hooks (Matteo Collina) [nodejs-private/node-private#773](https://github.com/nodejs-private/node-private/pull/773)
* \[[`51f4de4b4a`](https://github.com/nodejs/node/commit/51f4de4b4a)] - **(CVE-2025-55131)** **src,lib**: refactor unsafe buffer creation to remove zero-fill toggle (Сковорода Никита Андреевич) [nodejs-private/node-private#759](https://github.com/nodejs-private/node-private/pull/759)
* \[[`85f73e7057`](https://github.com/nodejs/node/commit/85f73e7057)] - **(CVE-2026-21637)** **tls**: route callback exceptions through error handlers (Matteo Collina) [nodejs-private/node-private#796](https://github.com/nodejs-private/node-private/pull/796)