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{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2025-7339",
"assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
"state": "PUBLISHED",
"assignerShortName": "openjs",
"dateReserved": "2025-07-07T20:01:14.812Z",
"datePublished": "2025-07-17T15:47:39.680Z",
"dateUpdated": "2025-07-17T20:24:47.447Z"
},
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "on-headers",
"vendor": "jshttp",
"versions": [
{
"lessThan": "1.1.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "on-headers is a node.js middleware for listening to <span style=\"background-color: rgb(33, 40, 48);\">when a response writes headers.</span> A bug in on-headers versions `&lt;1.1.0` may result in response headers being inadvertently modified when an array is passed to `response.writeHead()`.&nbsp;<span style=\"background-color: rgb(24, 26, 27);\">Users should upgrade to version 1.1.0 to receive a patch.&nbsp;</span>Uses are strongly encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array.<br>"
}
],
"value": "on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `<1.1.0` may result in response headers being inadvertently modified when an array is passed to `response.writeHead()`. Users should upgrade to version 1.1.0 to receive a patch. Uses are strongly encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.4,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-241",
"description": "CWE-241",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
"shortName": "openjs",
"dateUpdated": "2025-07-17T15:47:39.680Z"
},
"references": [
{
"url": "https://github.com/jshttp/on-headers/security/advisories/GHSA-76c9-3jph-rj3q"
},
{
"url": "https://github.com/jshttp/on-headers/commit/c6e384908c9c6127d18831d16ab0bd96e1231867"
},
{
"url": "https://cna.openjsf.org/security-advisories.html"
},
{
"url": "https://github.com/expressjs/morgan/issues/315"
},
{
"url": "https://github.com/jshttp/on-headers/issues/15"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "on-headers vulnerable to http response header manipulation",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-07-17T20:24:38.580125Z",
"id": "CVE-2025-7339",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-07-17T20:24:47.447Z"
}
}
]
}
}