---
id: GHSA-92hr-gmr6-h8cp
title: >-
  Etherpad addressed weak token RNG, login timing, plugin path handling, API
  request handling
summary: >-
  Etherpad addressed weak token RNG, login timing, plugin path handling, API
  request handling
severity: medium
cwe:
  - CWE-22
  - CWE-208
  - CWE-209
  - CWE-235
  - CWE-330
vendor: ep_etherpad-lite
product: ep_etherpad-lite
ecosystem: npm
affected:
  - ep_etherpad-lite <= 1.8.14
patched:
  - ep_etherpad-lite 3.3.0
published: '2026-08-17'
updated: '2026-08-17'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-92hr-gmr6-h8cp'
references:
  - url: 'https://github.com/ether/etherpad/security/advisories/GHSA-92hr-gmr6-h8cp'
  - url: 'https://github.com/ether/etherpad/pull/7906'
  - url: >-
      https://github.com/ether/etherpad/commit/7ea99706483443239bbbc0f2df9aff8ab5de4805
  - url: 'https://github.com/ether/etherpad/releases/tag/3.3.0'
  - url: 'https://github.com/advisories/GHSA-92hr-gmr6-h8cp'
tags:
  - ghsa
  - npm
ingestedAt: '2026-08-17T17:58:10.291Z'
---

## Overview

Fix: PR #7906 (ether/etherpad). A set of medium/low hardening fixes:

- **Weak RNG for tokens (CWE-330):** author/session/readonly IDs were generated with `Math.random()` (client and server). Now use `crypto.getRandomValues`.
- **Login timing / no failure delay (CWE-208/CWE-307):** the OIDC interaction login used a non-constant-time password compare with no failure delay. Now uses `crypto.timingSafeEqual` plus a uniform failure delay; user lookup is own-property only.
- **Plugin dependency path handling (CWE-22):** plugin dependency names from package.json were used to build filesystem paths without validation (admin-gated install). Now validated against the npm name grammar.
- **API parameter pollution (CWE-235):** `/api/2` merged all request headers into the API field set. Now forwards only `authorization`, matching the openapi.ts handler.
- **Pad-creation side effect:** `API.appendChatMessage` could create arbitrary pads (missing `getPadSafe`). Now requires the pad to exist.
- **Error info disclosure (CWE-209):** the admin file server echoed filesystem error detail; now returns a generic message.

## Affected packages

- `ep_etherpad-lite <= 1.8.14`

## Remediation

Upgrade to a patched release:

- `ep_etherpad-lite 3.3.0`