[CLSA-2026:1780051909] Fix CVE(s): CVE-2026-21717

Type:

security

Severity:

Moderate

Release date:

2026-05-29 13:59:57 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:e220ebeaedda917f671fc0a5bddada04a19ebeb2
alt-nodejs16-nodejs_16.20.2-20_amd64.deb
sha:89d11e791897bd8c68f0b2778da2367fa4e86442
alt-nodejs16-nodejs-devel_16.20.2-20_amd64.deb
sha:0a14e690e3024f25c68159c8a1e9588d48d6693d
alt-nodejs16-npm_8.19.4-16.20.2-20_amd64.deb
sha:2207ab66174dbd6497cce3b34f906bfff4e88642

Notes:

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