229 lines
9.4 KiB
JSON
229 lines
9.4 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-2026-6540",
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"assignerOrgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
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"state": "PUBLISHED",
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"assignerShortName": "Tigera",
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"dateReserved": "2026-04-17T17:41:32.750Z",
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"datePublished": "2026-07-30T14:45:04.068Z",
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"dateUpdated": "2026-07-30T16:12:07.691Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
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"shortName": "Tigera",
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"dateUpdated": "2026-07-30T14:45:04.068Z"
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},
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"title": "L7 policy bypass via unnormalized HTTP path matching",
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"datePublic": "2026-07-30T16:00:00.000Z",
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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-22",
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"description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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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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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-23",
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"description": "CWE-23 Relative Path Traversal",
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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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"affected": [
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{
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"vendor": "Tigera",
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"product": "Calico",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "3.31.6",
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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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"vendor": "Tigera",
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"product": "Calico Enterprise",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "3.21.7",
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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": "3.22.0",
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"lessThan": "3.22.4",
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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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"vendor": "Tigera",
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"product": "Calico Cloud",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "22.4.0",
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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": "Calico's Application Layer Policy (disabled by default), which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes authorizes the request under the permitted prefix while the downstream workload or a fronting proxy normalizes the path and serves the restricted endpoint. An attacker with network access and no special RBAC can potentially reach HTTP endpoints the policy was intended to restrict.",
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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>Calico's Application Layer Policy (disabled by default), which enforces HTTP rules through Dikastes, fails to perform URL path normalization. As a result, HTTP requests using path-traversal segments, encoded slashes, or repeated slashes are not correctly evaluated by Prefix path rules. Dikastes authorizes the request under the permitted prefix while the downstream workload or a fronting proxy normalizes the path and serves the restricted endpoint. An attacker with network access and no special RBAC can potentially reach HTTP endpoints the policy was intended to restrict.</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/projectcalico/calico/pull/12531",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/projectcalico/calico/pull/12532",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/projectcalico/calico/pull/12533",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://www.tigera.io/security-bulletins/tta-2026-005/",
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
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"subAvailabilityImpact": "LOW",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 7.9,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L"
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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": "Behnam Shobiri",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Seth Malaki",
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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": "Anthony Tam",
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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": "Matt Dupre",
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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 1.0.2"
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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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"timestamp": "2026-07-30T16:12:00.537090Z",
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"id": "CVE-2026-6540",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-07-30T16:12:07.691Z"
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}
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}
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]
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}
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} |