Missing Cryptographic Step Affecting deno_node package, versions <0.160.0
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of Concept
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Test your applications- Snyk IDSNYK-RUST-DENONODE-15010789
- published16 Jan 2026
- disclosed15 Jan 2026
- creditDavide Bombelli, Abdullah AlHamdan, Alexi Turcotte
Introduced: 15 Jan 2026
NewCVE-2026-22863 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade deno_node to version 0.160.0 or higher.
Overview
deno_node is a require and other node related functionality for Deno.
Affected versions of this package are vulnerable to Missing Cryptographic Step. An attacker can repeatedly perform encryption operations without proper finalization by exploiting the lack of cipher finalization, potentially enabling brute-force attempts or more sophisticated attacks to extract sensitive server information.
PoC
import crypto from "node:crypto";
const key = crypto.randomBytes(32);
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv("aes-256-cbc", key, iv);
cipher.final()
console.log(cipher);