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        "cveId": "CVE-2026-109869",
        "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "state": "PUBLISHED",
        "assignerShortName": "openjs",
        "dateReserved": "2026-10-13T08:52:10.454Z",
        "datePublished": "2026-10-15T18:08:31.243Z",
        "dateUpdated": "2026-10-16T20:06:00.782Z"
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                    "lang": "en",
                    "value": "undici is an HTTP client library for Node.js. In versions 6.23.0 through 6.29.0, 7.18.0 through 7.30.0, and 8.0.0 through 8.12.1, its fetch() implementation crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses because of a content-encoding limit, but it created the internal response stream before that check and returned without attaching an error listener or aborting the request, so the early close surfaces a content-length mismatch on the orphaned stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection, resulting in a denial of service. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, and users should upgrade to one of those versions or later. There is no workaround.",
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                            "value": "undici is an HTTP client library for Node.js. In versions 6.23.0 through 6.29.0, 7.18.0 through 7.30.0, and 8.0.0 through 8.12.1, its fetch() implementation crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses because of a content-encoding limit, but it created the internal response stream before that check and returned without attaching an error listener or aborting the request, so the early close surfaces a content-length mismatch on the orphaned stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection, resulting in a denial of service. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, and users should upgrade to one of those versions or later. There is no workaround."
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                            "version": "6.23.0",
                            "lessThan": "6.29.1"
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                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "6.29.1"
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                            "version": "7.18.0",
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                            "version": "8.12.2"
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                    "packageURL": "pkg:npm/undici"
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            "references": [
                {
                    "url": "https://github.com/nodejs/undici/security/advisories/GHSA-xjj6-f33q-929c"
                },
                {
                    "url": "https://cna.openjsf.org/security-advisories.html"
                }
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                {
                    "lang": "en",
                    "type": "reporter",
                    "value": "hanityx"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "mcollina"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "UlisesGascon"
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            "title": "undici vulnerable to Denial of Service via unhandled error on excessive content-encodings",
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                            "cweId": "CWE-459",
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                            "description": "CWE-459: Incomplete Cleanup",
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