CVE-2026-39322
A flaw in the PolarLearn learning program allows users to bypass security checks during the sign-in process. This error creates a valid user session for banned accounts before the system even verifies if the password is correct.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Users of the PolarLearn learning program, specifically version 0-PRERELEASE-15 and all earlier versions.
Real-world impact
An attacker could gain access to the data and authenticated features of a banned account by simply attempting to sign in, bypassing the intended restrictions on those accounts.
Why this severity
The critical score reflects that an attacker can remotely access sensitive account data and perform actions without needing a valid password or any user interaction.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Apr 7, 2026 · Apr 7, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- github.com/polarnl/PolarLearn/security…vendor advisory