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        "cveId": "CVE-2026-57817",
        "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "state": "PUBLISHED",
        "assignerShortName": "apache",
        "dateReserved": "2026-06-25T10:09:34.655Z",
        "datePublished": "2026-08-06T10:24:05.877Z",
        "dateUpdated": "2026-08-07T03:55:29.695Z"
    },
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                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "defaultStatus": "unaffected",
                    "packageName": "org.apache.cxf:cxf-rt-rs-security-sso-oidc",
                    "product": "Apache CXF",
                    "vendor": "Apache Software Foundation",
                    "versions": [
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                            "lessThan": "4.2.3",
                            "status": "affected",
                            "version": "4.2.0",
                            "versionType": "semver"
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                            "lessThan": "4.1.8",
                            "status": "affected",
                            "version": "4.0.0",
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                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Guanping Zhang reported this vulnerability."
                }
            ],
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                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider (IdP) that omits the `c_hash`, the RP becomes vulnerable to Authorization Code Substitution/Injection attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue."
                        }
                    ],
                    "value": "The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider (IdP) that omits the `c_hash`, the RP becomes vulnerable to Authorization Code Substitution/Injection attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue."
                }
            ],
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                    "other": {
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            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-20",
                            "description": "CWE-20 Improper Input Validation",
                            "lang": "en",
                            "type": "CWE"
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                    ]
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            "providerMetadata": {
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                "dateUpdated": "2026-08-06T10:24:05.877Z"
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            "references": [
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.apache.org/thread/pj63c3pf7kkp1xhr53do704fwj3t3htn"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Apache CXF: The authorization code hash (c_hash) is not enforced for the hybrid OIDC flow",
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            }
        },
        "adp": [
            {
                "metrics": [
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                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 8.1,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-06T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-57817"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-07T03:55:29.695Z"
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            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/08/06/19"
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