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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-7258",
"assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
"state": "PUBLISHED",
"assignerShortName": "php",
"dateReserved": "2026-04-28T04:58:17.457Z",
"datePublished": "2026-05-10T04:28:14.520Z",
"dateUpdated": "2026-05-11T13:06:10.908Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
"shortName": "php",
"dateUpdated": "2026-05-10T04:45:03.566Z"
},
"title": "Out-of-bounds read in urldecode() on NetBSD",
"datePublic": "2026-05-07T00:00:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "PHP Group",
"product": "PHP",
"platforms": [
"NetBSD"
],
"versions": [
{
"status": "affected",
"version": "8.2.*",
"lessThan": "8.2.31",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.3.*",
"lessThan": "8.3.31",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.4.*",
"lessThan": "8.4.21",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.5.*",
"lessThan": "8.5.6",
"versionType": "semver"
}
],
"defaultStatus": "affected"
}
],
"descriptions": [
{
"lang": "en",
"value": "In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like&nbsp;<code>isxdigit()</code>). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which&nbsp;can trigger a denial of service."
}
]
}
],
"references": [
{
"url": "https://github.com/php/php-src/security/advisories/GHSA-m8rr-4c36-8gq4",
"tags": [
"vendor-advisory"
]
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"subAvailabilityImpact": "LOW",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "AMBER",
"version": "4.0",
"baseSeverity": "MEDIUM",
"baseScore": 6.3,
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Amber"
}
}
],
"credits": [
{
"lang": "en",
"value": "xfourj",
"type": "reporter"
},
{
"lang": "en",
"value": "Ilija Tovilo",
"type": "remediation developer"
}
],
"source": {
"advisory": "GHSA-m8rr-4c36-8gq4",
"discovery": "EXTERNAL"
},
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-11T13:05:55.470310Z",
"id": "CVE-2026-7258",
"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": "2026-05-11T13:06:10.908Z"
}
}
]
}
}