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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-39322

PolarLearn: Any password authenticates banned accounts and grants API access

Description

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-15 and earlier, POST /api/v1/auth/sign-in creates a valid session for banned accounts before verifying the supplied password. That session is then accepted across authenticated /api routes, enabling account data access and authenticated actions as the banned user.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

polarnl PolarLearn

  • <= v0-PRERELEASE-15affected

References