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        "cveId": "CVE-2026-89058",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2026-09-10T18:20:52.114Z",
        "datePublished": "2026-09-18T07:20:29.162Z",
        "dateUpdated": "2026-09-18T07:20:29.162Z"
    },
    "containers": {
        "cna": {
            "title": "Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "Moderate",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
                        },
                        "type": "Red Hat severity rating"
                    }
                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.4,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
                        "version": "3.1"
                    },
                    "format": "CVSS"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins (\"*\"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality."
                }
            ],
            "affected": [
                {
                    "vendor": "Red Hat",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "6.2.19.Final",
                            "versionType": "maven"
                        },
                        {
                            "status": "affected",
                            "version": "7.0.0.Alpha1",
                            "lessThan": "7.0.5.Final",
                            "versionType": "maven"
                        }
                    ],
                    "packageName": "RESTEasy",
                    "collectionURL": "https://github.com/resteasy/resteasy",
                    "defaultStatus": "unaffected"
                }
            ],
            "references": [
                {
                    "url": "https://access.redhat.com/security/cve/CVE-2026-89058",
                    "tags": [
                        "vdb-entry",
                        "x_refsource_REDHAT"
                    ]
                },
                {
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519775",
                    "name": "RHBZ#2519775",
                    "tags": [
                        "issue-tracking",
                        "x_refsource_REDHAT"
                    ]
                },
                {
                    "url": "https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3"
                }
            ],
            "datePublic": "2026-09-17T14:00:00.000Z",
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-08-19T17:06:00.368Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2026-09-17T14:00:00.000Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Yu Bao (PayPal Cyber Security Team) for reporting this issue."
                }
            ],
            "providerMetadata": {
                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat",
                "dateUpdated": "2026-09-18T07:20:29.162Z"
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