198 lines
7.6 KiB
JSON
198 lines
7.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-91768",
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"assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
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"state": "PUBLISHED",
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"assignerShortName": "php",
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"dateReserved": "2026-09-15T00:42:30.045Z",
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"datePublished": "2026-09-25T21:07:30.950Z",
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"dateUpdated": "2026-09-28T13:31:31.382Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
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"shortName": "php",
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"dateUpdated": "2026-09-25T21:07:30.950Z"
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},
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"title": "IPv6 ACL bypass in FastCGI listen.allowed_clients due to partial address comparison (memcmp 12 bytes)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-1023",
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"description": "CWE-1023",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-1",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "PHP Group",
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"product": "PHP",
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"packageName": "PHP-FPM",
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"versions": [
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{
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"status": "affected",
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"version": "8.2.*",
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"lessThan": "8.2.34",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "8.3.*",
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"lessThan": "8.3.35",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "8.4.*",
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"lessThan": "8.4.26",
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"versionType": "semver"
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},
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{
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"status": "affected",
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"version": "8.5.*",
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"lessThan": "8.5.11",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "The IPv6 branch of the FastCGI client access check compares only the first 12 bytes of a 16-byte IPv6 address, so listen.allowed_clients matches on a /96 prefix instead of the exact address. An attacker who can source an address sharing the first 96 bits with an allowed one passes the check and reaches the FastCGI endpoint.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>The IPv6 branch of the FastCGI client access check compares only the first 12 bytes of a 16-byte IPv6 address, so <code>listen.allowed_clients</code> matches on a /96 prefix instead of the exact address. An attacker who can source an address sharing the first 96 bits with an allowed one passes the check and reaches the FastCGI endpoint.</p>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/php/php-src/security/advisories/GHSA-62xp-839h-2637",
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"tags": [
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"vendor-advisory"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "ADJACENT_NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.5,
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
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}
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "@l8BL (GitHub)",
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"type": "reporter"
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},
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{
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"lang": "en",
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"value": "@OSTIF-Derek (GitHub)",
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"type": "reporter"
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},
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{
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"lang": "en",
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"value": "Ilia Alshanetsky",
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"type": "reporter"
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},
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{
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"lang": "en",
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"value": "Alexandre Daubois",
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"type": "remediation developer"
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},
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{
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"lang": "en",
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"value": "Arnaud Le Blanc",
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"type": "remediation reviewer"
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},
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{
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"lang": "en",
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"value": "Jakub Zelenka",
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"type": "remediation reviewer"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.5"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-91768",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-09-28T12:57:04.931780Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-28T13:31:31.382Z"
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}
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}
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]
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}
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} |