CVE-2026-50623

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Source
https://cve.org/CVERecord?id=CVE-2026-50623
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-50623.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-50623
Aliases
Downstream
Published
2026-06-12T08:52:05Z
Modified
2026-08-20T18:56:17Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService
Details

An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service. Users are recommended to upgrade to version 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

Database specific 
{
    "cna_assigner": "apache",
    "cwe_ids": [
        "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50623.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "4.2.0"
                },
                {
                    "fixed": "4.2.2"
                },
                {
                    "introduced": "4.0.0"
                },
                {
                    "fixed": "4.1.7"
                },
                {
                    "fixed": "3.6.12"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/apache/cxf

Affected ranges

Type
GIT
Repo
https://github.com/apache/cxf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
82e9f60f994a7fad2d89f3c94e9090a4a8990c70
Introduced
04ccbfd709eef8f4af53d6237514fbe9db7ea81f
Fixed
d2b2776cd44a8d2f391194d90f50ce7b3d61a1f6
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.1.7"
        },
        {
            "introduced": "4.2.0"
        },
        {
            "fixed": "4.2.2"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

cxf-2.*
cxf-2.1
cxf-2.1.2
cxf-2.2
cxf-2.2.1
cxf-2.2.2
cxf-2.3.0
cxf-2.4.0
cxf-2.5.0
cxf-2.5.1
cxf-2.6.0
cxf-2.6.1
cxf-2.7.0
cxf-2.7.1
cxf-2.7.2
cxf-3.*
cxf-3.0.0
cxf-3.0.0-milestone2
cxf-3.1.0
cxf-3.1.1
cxf-3.1.2
cxf-3.1.3
cxf-3.1.4
cxf-3.2.0
cxf-3.2.1
cxf-3.2.2
cxf-3.2.3
cxf-3.2.4
cxf-3.2.5
cxf-3.3.0
cxf-3.3.1
cxf-3.3.2
cxf-3.3.3
cxf-3.4.0
cxf-3.4.1
cxf-3.5.0
cxf-4.*
cxf-4.0.0
cxf-4.0.1
cxf-4.0.2
cxf-4.0.3
cxf-4.0.4
cxf-4.1.0
cxf-4.1.1
cxf-4.1.2
cxf-4.1.3
cxf-4.1.4
cxf-4.1.5
cxf-4.1.6
cxf-4.2.0
cxf-4.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-50623.json"