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GHSA-92hr-gmr6-h8cp

Published Aug 17, 2026·Last modified Aug 17, 2026
Affected Components(1)
npm logoep_etherpad-lite
< 3.3.0
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.
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Risk Scores
Base Score
0.0

Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.

Threat Intelligence
0.0

No exploitation activity has been observed at this time. Continue routine monitoring.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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