GHSA-j5rm-v3vh-vx94

Source

https://github.com/advisories/GHSA-j5rm-v3vh-vx94

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-j5rm-v3vh-vx94/GHSA-j5rm-v3vh-vx94.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-j5rm-v3vh-vx94

Published

2026-05-18T15:37:00Z

Modified

2026-05-18T15:48:04Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

eduMFA Passkeys: missing expiration flag may allow replay attacks and reuse of old challenges

Details

Impact

In eduMFA < 2.9.1 userless Passkey/WebAuthn challenges might be replayed and do not expire

Patches

Fixed in eduMFA >= 2.9.1 by adding validity information to the userless challenges.

Workarounds

No known workarounds besides disabling userless login altogether.

Database specific

{
    "cwe_ids": [
        "CWE-287",
        "CWE-613"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-18T15:37:00Z",
    "nvd_published_at": null,
    "severity": "HIGH"
}

References

Affected packages

PyPI / edumfa

Package

Name: edumfa; View open source insights on deps.dev
Purl: pkg:pypi/edumfa

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.9.1

Affected versions

1.*

1.2.0

1.3.0

1.4.0

1.5.0

1.5.1

2.*

2.0.0

2.0.1

2.0.2

2.0.3

2.1.0

2.2.0

2.3.0

2.4.0

2.5.0

2.6.0

2.6.1

2.7.0

2.7.1

2.7.2

2.8.0

2.9.0rc1

2.9.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-j5rm-v3vh-vx94/GHSA-j5rm-v3vh-vx94.json"