---
title: "CVE-2023-50475: bsock uses weak hashing algorithms"
url: https://erroneo.us/security/cve/CVE-2023-50475/
description: "CVE-2023-50475 (bsock (npm)): An issue was discovered in bcoin-org bcoin version 2.2.0, allows remote attackers to obtain sensitive information via weak…"
type: vulnerability-record
section: "Security Digest"
date_published: 2023-12-21
date_modified: 2024-11-26
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-50475"
kev: false
cvss: 9.1
epss: 0.0054
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-50475: bsock uses weak hashing algorithms

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 45: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 45% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes bsock (npm) <= 0.1.11, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

An issue was discovered in bcoin-org bcoin version 2.2.0, allows remote attackers to obtain sensitive information via weak hashing algorithms in the component \vendor\faye-websocket.js.

## Affected packages

- npm `bsock` <= 0.1.11 → fixed: none listed

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.54% probability of exploitation activity in the next 30 days; percentile 45.

## Sources

- [GitHub Advisory GHSA-jj93-39pf-7mcf](https://github.com/advisories/GHSA-jj93-39pf-7mcf)
- [CVE.org record CVE-2023-50475](https://www.cve.org/CVERecord?id=CVE-2023-50475)
- [NVD entry CVE-2023-50475](https://nvd.nist.gov/vuln/detail/CVE-2023-50475)
- [github.com](https://github.com/bcoin-org/bcoin/issues/1174)
- [github.com](https://github.com/tianjk99/Cryptographic-Misuses/blob/main/CVE-2023-50475.md)
- [github.com](https://github.com/bcoin-org/bcoin/blob/master/node_modules/bsock/package.json)
- [github.com](https://github.com/bcoin-org/bsock/blob/master/package.json)

---
Source page: https://erroneo.us/security/cve/CVE-2023-50475/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt