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    "cveMetadata": {
        "cveId": "CVE-2026-15712",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2026-07-14T09:55:11.765Z",
        "datePublished": "2026-07-14T18:11:33.603Z",
        "dateUpdated": "2026-07-14T19:15:43.984Z"
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            "title": "Soupclientmessageiohttp2: libsoup3: libsoup: http/2 goaway frame parsing heap buffer over-read via invalid nul-termination assumption",
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                        "content": {
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                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A heap buffer over-read vulnerability was discovered in libsoup's (versions: libsoup 3.0 to 3.7.0) HTTP/2 connection tracking framework. When the library processes an HTTP/2 GOAWAY frame, it improperly handles the \"Additional Debug Data\" payload by assuming the data stream is a safely NUL-terminated C-string. Because the parser lacks strict length-boundary verification before reading this data, a remote, unauthenticated attacker can intentionally send a malformed GOAWAY frame missing the appropriate null delimiter. This causes the library to read past the end of the allocated buffer, triggering an application crash that results in a denial of service (DoS), or potentially exposing fragments of memory contents."
                }
            ],
            "affected": [
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "libsoup3",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
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                    ]
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                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499939",
                    "name": "RHBZ#2499939",
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                        "x_refsource_REDHAT"
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                },
                {
                    "url": "https://gitlab.gnome.org/GNOME/libsoup/-/work_items/540"
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            ],
            "datePublic": "2026-07-14T10:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "description": "Out-of-bounds Read",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "x_redhatCweChain": "CWE-125: Out-of-bounds Read",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "The vulnerability requires debug logging to be enabled with the G_MESSAGES_DEBUG environment variable, e.g. G_MESSAGES_DEBUG=all or G_MESSAGES_DEBUG=libsoup-http2. Ensure this environment variable is not set."
                }
            ],
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-07-14T09:56:52.678Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2026-07-14T10:00:00.000Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank cavid for reporting this issue."
                }
            ],
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