# CVE-2016-2183: Node.js 4 and 1 other: Exposure of Sensitive Information to an Unauthorized Actor

CVE-2016-2183 is fixed in 2 products on 1 platform, first by Node.js 4 4.6.0, released September 27, 2016. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2016-2183
- Priority: High
- CVSS: 7.5
- EPSS: 0.9470
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 1, 2016
- Weakness: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-2183

## Description

The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Node.js 4 | 4.6.0 | [Node.js 4 4.6.0](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.4-4.6.0.md) | Sep 27, 2016 |
| Windows apps | Python 3.5 | 3.5.3 | [Python 3.5 3.5.3](https://patchblox.com/security/data/fix/windows-app/python.python.3.5-3.5.3.md) | Jan 17, 2017 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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