[CLSA-2026:1780063412] Fix CVE(s): CVE-2026-21717

Type:

security

Severity:

Moderate

Release date:

2026-05-29 14:03:37 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 9.4.146.26
     - 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 16 fix exists — 16.x
       went EOL before disclosure; this is an adapted reduced port, no
       rapidhash / HashSeed-view refactor)
     - CVE-2026-21717

Updated packages:

alt-nodejs16-docs_16.20.2-20_amd64.deb
sha:e6a4c375fe337058edf236522ef784bb1f61b3dd
alt-nodejs16-nodejs_16.20.2-20_amd64.deb
sha:f49d8f8cf9b8ef27d9f575816b77ae6c19375683
alt-nodejs16-nodejs-devel_16.20.2-20_amd64.deb
sha:a2d7ccef932b89583575973318204699b1a3da71
alt-nodejs16-npm_8.19.4-16.20.2-20_amd64.deb
sha:24c9bec3a1a9e784c23e825b2c6b8a2175ddb02b

Notes:

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