Node.js 26.12.1

What's new in 26.12.1

This is a security release.
Notable Changes
- (CVE-2026-106069, CVE-2026-106072) tls: reject non-canonical IP addresses (Matteo Collina) – High
- (CVE-2026-105482) dns: validate resolve inputs for null bytes (James M Snell) – High
- (CVE-2026-105483) tls: fix ip normalization regression (James M Snell) – High
- (CVE-2026-111497) src: expose BROTLI_DECODER_ERROR_FORMAT_BLOCK_SWITCH (Antoine du Hamel) – High
- (CVE-2026-111497) deps: brotli: cherry-pick 0ed4268a4401abcb44720963 (Evgenii Kliuchnikov) – High
- (CVE-2026-105481) http: ensure agent data guard works without I/O (James M Snell) – Medium
- (CVE-2026-106074) crypto: reset random caches across snapshots (Filip Skokan) – Medium
- (CVE-2026-106070) zlib: avoid caching invalid ZIP local headers (Matteo Collina) – Low
- (CVE-2026-106071) src: fix the fs permission tree node on wildcard nodes (James M Snell) – Low
- (CVE-2026-106073) permission: check permission model in realpathSync (RafaelGSS) – Low
- deps: V8: backport 93cd21e8254b (Joyee Cheung)
- crypto: update root certificates to NSS 3.131.1 (Antoine du Hamel)
- tls: reject chains containing blocked public keys (Ulises Gascon)
- deps: update c-ares to 1.34.9 (Node.js GitHub Bot)
- tools: retry Gatekeeper check and stapling after notarization (Ryan Aslett)
- crypto: harden X.509 conversion and formatting (Filip Skokan)
Commits
- [818e4ca061] - crypto: update root certificates to NSS 3.131.1 (Antoine du Hamel) #66877
- [fd3c87ed43] - crypto: harden X.509 conversion and formatting (Filip Skokan) nodejs-private/node-private#966
- [acffa610db] - crypto: reset random caches across snapshots (Filip Skokan) nodejs-private/node-private#987
- [7895a5cd2d] - deps: update undici to 8.12.2 (Node.js GitHub Bot) #66721
- [12daa54d2e] - deps: V8: backport 93cd21e8254b (Joyee Cheung) nodejs-private/node-private#999
- [6a8b3db7e2] - deps: update c-ares to 1.34.9 (Node.js GitHub Bot) #66868
- [a6040b50d9] - deps: brotli: cherry-pick 0ed4268a4401abcb44720963 (Evgenii Kliuchnikov) nodejs-private/node-private#1002
- [6b78ea171d] - dns: validate resolve inputs for null bytes (James M Snell) nodejs-private/node-private#984
- [0683ee5f7d] - http: ensure agent data guard works without I/O (James M Snell) nodejs-private/node-private#983
- [e5cae10148] - Revert "module: synchronously load most ES modules" (Antoine du Hamel) #66786
- [cc244131aa] - permission: check permission model in realpathSync (RafaelGSS) nodejs-private/node-private#973 …

Full release notes »