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BDVDB
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Vulnerabilities

CVE-2026-33640 | BDVDB-2026-323253 Detail

outlineoutline

Description#

Outline is a service that allows for collaborative documentation. Outline implements an Email OTP login flow for users not associated with an Identity Provider. Starting in version 0.86.0 and prior to version 1.6.0, Outline does not invalidate OTP codes based on amount or frequency of invalid submissions, rather it relies on the rate limiter to restrict attempts. Consequently, identified bypasses in the rate limiter permit unrestricted OTP code submissions within the codes lifetime. This allows attackers to perform brute force attacks which enable account takeover. Version 1.6.0 fixes the issue.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

  • CWE-307 Improper Restriction of Excessive Authentication Attempts

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.
  2. Version 2Most recent update recorded in the CVE List.