CVE-2026-39322 — PolarLearn: Any password authenticates banned accounts and grants API access
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…
Published: 2026-04-07 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7