UBUNTU-CVE-2026-46623

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Source
https://ubuntu.com/security/CVE-2026-46623
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46623.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-46623
Upstream
Published
2026-09-15T10:17:00Z
Modified
2026-09-24T02:00:28Z
Severity
  • 7.4 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the OAuth2 authentication module updates an existing local account with profile attributes that can include userPassword and inetUserStatus, rewriting the password to the username and reactivating disabled accounts. The missing OAuth.removeRestrictedAccountUpdateAttributes filtering permits these credential and status fields to reach the account update. With account creation enabled, repeated OAuth login causes the default ldapService chain to accept the username as both identifier and password, allowing an unauthenticated attacker to take over the local account without interacting with the identity provider. The rewrite can be denied for usernames shorter than the configured minimum password length. This issue is fixed in version 16.1.1.

References

Affected packages

Ubuntu:16.04:LTS / openam

Package

Name
openam
Purl
pkg:deb/ubuntu/openam?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.4.0-1build6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openam",
            "binary_version": "1.4.0-1build6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46623.json"