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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-69215",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-03T16:57:50.125Z",
"datePublished": "2026-09-15T19:17:12.429Z",
"dateUpdated": "2026-09-16T18:36:57.350Z"
},
"containers": {
"cna": {
"title": "Http4s: CookieJar middleware matches by substring, leaking cookies cross-origin",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-565",
"lang": "en",
"description": "CWE-565: Reliance on Cookies without Validation and Integrity Checking",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1275",
"lang": "en",
"description": "CWE-1275: Sensitive Cookie with Improper SameSite Attribute",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/http4s/http4s/security/advisories/GHSA-grh8-3p95-f9rr",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/http4s/http4s/security/advisories/GHSA-grh8-3p95-f9rr"
},
{
"name": "https://github.com/http4s/http4s/commit/c0a37f38d5ee2a568ba57bd9da62f8d79b8b1fcc",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/http4s/http4s/commit/c0a37f38d5ee2a568ba57bd9da62f8d79b8b1fcc"
},
{
"name": "https://github.com/http4s/http4s/releases/tag/v0.23.35",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/http4s/http4s/releases/tag/v0.23.35"
},
{
"name": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47"
}
],
"affected": [
{
"vendor": "http4s",
"product": "http4s",
"versions": [
{
"version": "< 0.23.35",
"status": "affected"
},
{
"version": ">= 1.0.0-M1, < 1.0.0-M47",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-15T19:17:12.429Z"
},
"descriptions": [
{
"lang": "en",
"value": "Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an attacker-controlled hostname such as evilexample.com when an application using the same jar makes an attacker-influenced outbound request. This exposes session or authentication cookies and can enable hijacking of the application’s outbound sessions. This issue is fixed in versions 0.23.35 and 1.0.0-M47."
}
],
"source": {
"advisory": "GHSA-grh8-3p95-f9rr",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-16T18:18:31.142649Z",
"id": "CVE-2026-69215",
"options": [
{
"Exploitation": "none"
},
{
"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": "2026-09-16T18:36:57.350Z"
}
}
]
}
}