CVE-2026-39322

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/polarnl/PolarLearn/security/advisories/GHSA-9vx4-7ww7-4cf5	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:*

History

14 Apr 2026, 18:44

Type	Values Removed	Values Added
References	~~() https://github.com/polarnl/PolarLearn/security/advisories/GHSA-9vx4-7ww7-4cf5 -~~	() https://github.com/polarnl/PolarLearn/security/advisories/GHSA-9vx4-7ww7-4cf5 - Vendor Advisory
CPE		cpe:2.3:a:polarlearn:polarlearn:-:::::::*
First Time		Polarlearn Polarlearn polarlearn

09 Apr 2026, 17:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

07 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 20:16

Updated : 2026-04-14 18:44

NVD link : CVE-2026-39322

Mitre link : CVE-2026-39322

CVE.ORG link : CVE-2026-39322

JSON object : View

Products Affected

polarlearn

polarlearn

CWE

CWE-287

Improper Authentication

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