CVE-2026-92161

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Source
https://cve.org/CVERecord?id=CVE-2026-92161
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-92161.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-92161
Aliases
Published
2026-09-25T15:53:34Z
Modified
2026-09-26T03:48:31Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
FriendsOfFlarum OAuth: Unauthenticated account takeover via unverified email trust in Discord OAuth provider
Details

FriendsOfFlarum OAuth allows users to log in to Flarum with GitHub, Twitter, Facebook, and other providers. Prior to 1.7.4 and 2.0.0-beta.4, the Discord OAuth provider does not check the verified field returned for an OAuth email before passing the address to Flarum core as trusted through provideTrustedEmail(). When Discord sign-in is enabled, an unauthenticated attacker who knows the email address of a Flarum user can configure a Discord account with that unverified address and a verified phone number, then sign in to cause Flarum to match the trusted address, link the attacker-controlled Discord identity to the existing user, and authenticate as the victim without a password or victim interaction. Exploitation requires that the victim's email address is not already associated with a Discord account, and it can compromise administrator accounts. Other bundled providers were not confirmed to be practically exploitable by this method because their relevant authentication flows return only verified or confirmed email addresses. This issue is fixed in versions 1.7.4 and 2.0.0-beta.4.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92161.json"
}
References

Affected packages

Git / github.com/friendsofflarum/oauth

Affected ranges

Type
GIT
Repo
https://github.com/friendsofflarum/oauth
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
79be5861b404e31df49a38b095f1d5e3814a3e3c
Introduced
deca8944b21af8c98db98d8c130848e0668be1b9
Fixed
b8a6cd5e30624841df19106926b1bc862f260f7f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.7.4"
        },
        {
            "introduced": "2.0.0-beta.1"
        },
        {
            "fixed": "2.0.0-beta.4"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.1.0
0.2.0
0.2.1
0.3.0
1.*
1.0.0
1.0.1
1.0.2
1.1.0
1.1.1
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.3.0
1.3.1
1.3.2
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.5.2
1.5.3
1.5.4
1.6.1
1.6.10
1.6.11
1.6.12
1.6.13
1.6.14
1.6.16
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.7.0
1.7.1
1.7.2
1.7.3
2.*
2.0.0-beta.1
2.0.0-beta.2
2.0.0-beta.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-92161.json"