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GHSA-92hr-gmr6-h8cp

Fix: ether/etherpad#7906

GHSA-92hr-gmr6-h8cp is a security vulnerability in ep_etherpad-lite. O3 Security confirms whether GHSA-92hr-gmr6-h8cp is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Etherpad addressed weak token RNG, login timing, plugin path handling, API request handling

Published
Aug 17, 2026
Updated
Aug 17, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Aug 17, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

2other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
ep_etherpad-litenpm
253downloads / week

Description

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

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmep_etherpad-liteall versions3.3.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ep_etherpad-lite. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update ep_etherpad-lite to 3.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-92hr-gmr6-h8cp is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-92hr-gmr6-h8cp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-92hr-gmr6-h8cp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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 w
O3 Security · Impact-Aware SCA

Is GHSA-92hr-gmr6-h8cp in your dependencies?

O3 detects GHSA-92hr-gmr6-h8cp across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.