cvedb.io
CVE-2026-66885
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-08-05T20:17:13.007 · Last modified 2026-08-05T20:17:13.007

Summary

Cross-Site Request Forgery (CSRF) vulnerability in livebook-dev livebook allows an attacker to authenticate a victim's browser session under the attacker's own Livebook Teams identity. When Livebook is configured to use Livebook Teams for identity, Livebook.ZTA.LivebookTeams.handle_request/4 in lib/livebook/zta/livebook_teams.ex handles the OAuth-style callback carrying a teams_identity marker and a code parameter. The clause exchanges that code for an access token and writes the token into the browser session without verifying any value that ties the callback to the browser session that started the login. No state or nonce is generated when the flow is initiated: Livebook.Teams.Requests.create_auth_request/1 in lib/livebook/teams/requests.ex sends an empty request body, so no per-attempt

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.