CVE-2026-25222

Source
https://cve.org/CVERecord?id=CVE-2026-25222
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25222.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25222
Aliases
  • GHSA-wcr9-mvr9-4qh5
Published
2026-02-02T23:01:02.519Z
Modified
2026-03-14T12:47:30.969510Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
Summary
PolarLearn Affected by User Enumeration via Argon2 Timing Attack on Sign-In Endpoint
Details

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-15 and earlier, a timing attack vulnerability in the sign-in process allows unauthenticated attackers to determine if a specific email address is registered on the platform. By measuring the response time of the login endpoint, an attacker can distinguish between valid and invalid email addresses. This occurs because the server only performs the computationally expensive Argon2 password hashing if the user exists in the database. Requests for existing users take significantly longer (~650ms) than requests for non-existent users (~160ms).

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25222.json"
}
References

Affected packages

Git / github.com/polarnl/polarlearn

Affected ranges

Type
GIT
Repo
https://github.com/polarnl/polarlearn
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25222.json"