CVE-2026-39322

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,v0-PRERELEASE-15]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "PolarLearn", "source": "cna", "vendor": "polarnl"}, "product": "polarlearn", "vendor": "polarnl"}], "analysis": {"en": {"generated_at": "2026-04-14T20:59:56.156510+00:00", "value": {"mitigation_remediation": ["Upgrade PolarLearn to version 0-PRERELEASE-16 or newer.", "Revoke existing sessions for banned accounts and prevent session creation until password is verified."], "summary": {"action": "Patch Immediately", "impact": "Unauthorized API access"}, "threat_synthesis": {"affected_systems": "The affected product is PolarLearn, as supplied by polarlearn. Vulnerable releases are those up to and including 0\u2011PRERELEASE\u201115. Versions 0\u2011PRERELEASE\u201116 and later are not affected.", "description_and_impact": "The vulnerability in PolarLearn\u2019s authentication endpoint allows any password to authenticate a banned account because the system verifies the password only after creating a session. This results in the creation of a valid session that is then accepted by all authenticated API routes, giving an attacker access to account data and the ability to perform actions as the banned user. The weakness is a loss of authentication control (CWE\u2011287).", "risk_and_exploitability": "The CVSS score of 9.2 indicates a high\u2011severity problem, and while the EPSS score is below 1% and the vulnerability is not listed in CISA\u2019s KEV catalog, the ability to bypass authentication renders it a critical risk. An attacker would need to send a signed POST request to /api/v1/auth/sign-in with the user\u2019s email and any arbitrary password. The exploit requires network access to the API endpoint; no local privilege escalation or code execution is required."}}}}, "created": "2026-04-08T19:34:49.980922+00:00", "updated": "2026-04-15T16:15:11.971807+00:00", "vendors": ["polarnl", "polarnl$PRODUCT$polarlearn"]}