[CLSA-2026:1780070999] Fix CVE(s): CVE-2026-21717

Type:

security

Severity:

Moderate

Release date:

2026-05-29 16:10:04 UTC

Description:

   * SECURITY UPDATE: HashDoS in V8 — consecutive numeric strings collide in
     the internal string table, letting attacker-controlled JSON.parse input
     degrade performance in a local PoC against V8 10.2.154.26
     - debian/patches/CVE-2026-21717.patch: scramble the 24-bit array-index
       value stored in a Name's hash_field via a 3-round xorshift-multiply
       with compile-time constants (no upstream Node.js 18 fix exists — 18.x
       went EOL before disclosure; this is an adapted reduced port, no
       rapidhash / HashSeed-view refactor)
     - CVE-2026-21717

Updated packages:

alt-nodejs18-docs_18.20.8-13_amd64.deb
sha:c29c8b66c23085c2428a6060950a1fe1e8f4ae13
alt-nodejs18-nodejs_18.20.8-13_amd64.deb
sha:adb0315e97ba15f5a66fe335620dc8afeca68b56
alt-nodejs18-nodejs-devel_18.20.8-13_amd64.deb
sha:942897c5f14daf4d1e7d5ad6331374aa701ea559
alt-nodejs18-npm_10.8.2-18.20.8.13_amd64.deb
sha:d803a3f785fa91e5d60b1ee5a1565de4ece30c01

Notes:

This page is generated automatically and has not been checked for errors. For clarification or corrections please contact the CloudLinux Packaging Team.