UBUNTU-CVE-2026-47426

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Source
https://ubuntu.com/security/CVE-2026-47426
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47426.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-47426
Upstream
Published
2026-09-15T10:17:00Z
Modified
2026-09-24T02:00:28Z
Severity
  • 7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/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 private_key_jwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwks_uri resolver and verified assertion to the expected clientID in ClientCredentialsReader. An attacker controlling any registered client with published keys, including one obtained through open dynamic registration when enabled, can authenticate as another client whose keys are exposed through jwks_uri and mint tokens in that client's name across realms in the same OpenAM process. 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-2026-47426.json"