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GHSA-92hr-gmr6-h8cp

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

No scoreFix available

GHSA-92hr-gmr6-h8cp is a vulnerability with no CVSS score yet in ep_etherpad-lite, published August 17, 2026. No source lists public exploit code. Fixed in ep_etherpad-lite 3.3.0.

What does this mean?
Severity
UnratedNo CVSS score yet
Exploit chance
UnscoredNo EPSS score yet
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
3.3.0ep_etherpad-lite +1 more

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

Affected packages
PackageAffectedFixed
ep_etherpad-lite
npm
through 1.8.14
3.3.0
ep_etherpad-lite
npm
before 3.3.0
3.3.0

What each source reports

GitHub AdvisoriesNo score

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

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.
Record
GHSA-92hr-gmr6-h8cp
Weakness
CWE-22, CWE-208, CWE-209, CWE-235, CWE-330
Updated
2026-11-02
OSVNo score

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

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.
Record
GHSA-92hr-gmr6-h8cp
Weakness
CWE-208, CWE-209, CWE-22, CWE-235, CWE-330
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedGitHub Advisories, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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