CVE-2026-25222 | BDVDB-2026-313368 Detail

Description#

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-15 and earlier, a timing attack vulnerability in the sign-in process allows unauthenticated attackers to determine if a specific email address is registered on the platform. By measuring the response time of the login endpoint, an attacker can distinguish between valid and invalid email addresses. This occurs because the server only performs the computationally expensive Argon2 password hashing if the user exists in the database. Requests for existing users take significantly longer (~650ms) than requests for non-existent users (~160ms).

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Exploit#

History#

1. Version 12026-02-02Record published in the CVE List.
2. Version 22026-02-04Most recent update recorded in the CVE List.