194 lines
9.8 KiB
JSON
194 lines
9.8 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-2026-100252",
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"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"state": "PUBLISHED",
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"assignerShortName": "apache",
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"dateReserved": "2026-09-25T16:45:48.869Z",
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"datePublished": "2026-11-04T10:44:17.367Z",
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"dateUpdated": "2026-11-05T04:55:52.687Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"shortName": "apache",
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"dateUpdated": "2026-11-04T10:44:17.367Z"
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},
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"title": "Apache ZooKeeper: SASL authorization bypass on the client port through a client-supplied authorization ID",
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"problemTypes": [
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{
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"descriptions": [
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{
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"description": "CWE-863 Incorrect Authorization",
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"lang": "en",
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"cweId": "CWE-863",
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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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"source": {
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"discovery": "UNKNOWN"
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},
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"affected": [
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{
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"vendor": "Apache Software Foundation",
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"product": "Apache ZooKeeper",
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"packageURL": "pkg:maven/org.apache.zookeeper/zookeeper",
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"versions": [
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{
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"status": "affected",
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"version": "3.9.0",
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"lessThanOrEqual": "3.9.6",
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"versionType": "maven"
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},
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{
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"status": "affected",
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"version": "3.8.0",
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"lessThanOrEqual": "3.8.7",
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"versionType": "maven"
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}
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],
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"defaultStatus": "unaffected",
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"collectionURL": "https://repo.maven.apache.org/maven2",
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"packageName": "org.apache.zookeeper:zookeeper"
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}
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],
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"descriptions": [
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{
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"value": "Improper Authorization vulnerability in Apache ZooKeeper.\n\nWhen SASL authentication is enabled on the client port, the server's SASL callback handler grants every authorization identity (authzid) that a client requests, without checking it against the principal the client authenticated as. The server then tries to replace the requested identity with a canonical form of the authenticated principal, derived from the zookeeper.security.auth_to_local rules. If no rule applies to the principal, canonicalization fails and the error is only logged. The client-requested authzid then becomes the session's SASL identity for all ACL checks.\n\nAn authenticated client whose principal is not covered by the auth_to_local rules can therefore claim any SASL identity. With the default rules, this includes any Kerberos principal from a realm other than the server's default realm, such as a principal from a cross-realm trusted realm. The client then gets the permissions granted to that identity in sasl ACLs. If the requested identity matches a configured zookeeper.superUser, it gets superuser access to the whole data tree.\n\nUsers are recommended to upgrade to version 3.8.8 or 3.9.7, which fixes the issue.",
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"lang": "en",
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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>Improper Authorization vulnerability in Apache ZooKeeper.<br><span><br>When SASL authentication is enabled on the client port, the server's SASL callback handler grants every authorization identity (authzid) that a client requests, without checking it against the principal the client authenticated as. The server then tries to replace the requested identity with a canonical form of the authenticated principal, derived from the </span><code>zookeeper.security.auth_to_local</code><span> rules. If no rule applies to the principal, canonicalization fails and the error is only logged. The client-requested authzid then becomes the session's SASL identity for all ACL checks.<br></span><span><br>An authenticated client whose principal is not covered by the </span><code>auth_to_local</code><span> rules can therefore claim any SASL identity. With the default rules, this includes any Kerberos principal from a realm other than the server's default realm, such as a principal from a cross-realm trusted realm. The client then gets the permissions granted to that identity in </span><code>sasl</code><span> ACLs. If the requested identity matches a configured </span><code>zookeeper.superUser</code><span>, it gets superuser access to the whole data tree.<br></span><span><br></span><span>Users are recommended to upgrade to version 3.8.8 or 3.9.7, which fixes the issue.</span></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://lists.apache.org/thread.html/81rdyqlmlp3dtkkqgp8t5080g3b9r2pj",
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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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"other": {
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"type": "Textual description of severity",
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"content": {
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"text": "important"
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}
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},
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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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},
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{
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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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"format": "CVSS",
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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": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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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": 8.6,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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": "cunyi li <xiaoheihei1107@gmail.com>",
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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": "Prasath Jayasundar & PayPal Cyber Security Team",
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"type": "reporter"
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}
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],
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"x_generator": {
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"engine": "Vulnogram 1.0.3"
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}
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},
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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "http://www.openwall.com/lists/oss-security/2026/11/03/10"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-11-04T11:09:10.129Z"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-11-04T00:00:00+00:00",
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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": "total"
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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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"id": "CVE-2026-100252"
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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": "2026-11-05T04:55:52.687Z"
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}
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}
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]
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}
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} |