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vuln-cve/data/2026/77xxx/CVE-2026-77634.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-77634",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-20T20:52:01.927Z",
"datePublished": "2026-08-24T20:33:46.836Z",
"dateUpdated": "2026-08-25T19:23:40.053Z"
},
"containers": {
"cna": {
"title": "CakePHP: SmtpTransport vulnerable to CRLF header injection",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-93",
"lang": "en",
"description": "CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc"
},
{
"name": "https://github.com/cakephp/cakephp/commit/08188962bcd99a95da1e49f62e786f2d688f1e41",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cakephp/cakephp/commit/08188962bcd99a95da1e49f62e786f2d688f1e41"
},
{
"name": "https://github.com/cakephp/cakephp/commit/2afe42b02d8ddc5d442bca5e8bb61910a727646e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cakephp/cakephp/commit/2afe42b02d8ddc5d442bca5e8bb61910a727646e"
},
{
"name": "https://github.com/cakephp/cakephp/commit/3e09dae6cbdc983754fa3a8e6aae74da102a3ea1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cakephp/cakephp/commit/3e09dae6cbdc983754fa3a8e6aae74da102a3ea1"
},
{
"name": "https://github.com/cakephp/cakephp/commit/b67b622457362b075bb37e625a82af73a0b3c9c3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cakephp/cakephp/commit/b67b622457362b075bb37e625a82af73a0b3c9c3"
}
],
"affected": [
{
"vendor": "cakephp",
"product": "cakephp",
"versions": [
{
"version": ">= 4.5.0, < 4.5.12",
"status": "affected"
},
{
"version": ">= 4.6.0, < 4.6.5",
"status": "affected"
},
{
"version": ">= 5.0.0, < 5.1.9",
"status": "affected"
},
{
"version": ">= 5.2.0, < 5.2.14",
"status": "affected"
},
{
"version": ">= 5.3.0, < 5.3.7",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-24T20:33:46.836Z"
},
"descriptions": [
{
"lang": "en",
"value": "CakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders() or Message::addHeaders() do not have CRLF bytes removed, allowing header injection when user-controlled data is used in message headers. This issue is fixed in versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7."
}
],
"source": {
"advisory": "GHSA-2qh5-382h-3jpc",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-25T18:32:29.994179Z",
"id": "CVE-2026-77634",
"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": "2026-08-25T19:23:40.053Z"
}
}
]
}
}