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        "cveId": "CVE-2025-4035",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2025-04-28T06:04:50.855Z",
        "datePublished": "2025-04-29T12:56:22.726Z",
        "dateUpdated": "2026-06-30T14:36:15.409Z"
    },
    "containers": {
        "cna": {
            "title": "Libsoup: cookie domain validation bypass via uppercase characters in libsoup",
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                        "content": {
                            "value": "Moderate",
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                        "type": "Red Hat severity rating"
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                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 4.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                        "version": "3.1"
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            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in libsoup. When handling cookies, libsoup clients mistakenly allow cookies to be set for public suffix domains if the domain contains at least two components and includes an uppercase character. This bypasses public suffix protections and could allow a malicious website to set cookies for domains it does not own, potentially leading to integrity issues such as session fixation."
                }
            ],
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                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "libsoup3",
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                            "version": "0:3.6.5-3.el10_0.6",
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                            "versionType": "rpm",
                            "status": "unaffected"
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                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "libsoup",
                    "defaultStatus": "affected",
                    "cpes": [
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                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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                    "packageName": "libsoup",
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                    "packageName": "libsoup",
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                {
                    "url": "https://access.redhat.com/errata/RHSA-2025:8128",
                    "name": "RHSA-2025:8128",
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                    ]
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                },
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                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2362651",
                    "name": "RHBZ#2362651",
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                        "issue-tracking",
                        "x_refsource_REDHAT"
                    ]
                },
                {
                    "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/443"
                }
            ],
            "datePublic": "2025-04-28T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-178",
                            "description": "Improper Handling of Case Sensitivity",
                            "lang": "en",
                            "type": "CWE"
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                    ]
                }
            ],
            "x_redhatCweChain": "CWE-178: Improper Handling of Case Sensitivity",
            "timeline": [
                {
                    "lang": "en",
                    "time": "2025-04-28T05:38:56.188Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2025-04-28T00:00:00.000Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Jan Różański for reporting this issue."
                }
            ],
            "providerMetadata": {
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                "dateUpdated": "2026-06-30T10:40:23.040Z"
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            "x_generator": {
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        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://gitlab.gnome.org/GNOME/libsoup/-/work_items/443",
                        "tags": [
                            "exploit"
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                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-30T14:35:57.555416Z",
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                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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