208 lines
8.3 KiB
JSON
208 lines
8.3 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-2026-49114",
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"assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
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"state": "PUBLISHED",
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"assignerShortName": "cisa-cg",
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"dateReserved": "2026-05-27T16:19:04.848Z",
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"datePublished": "2026-08-21T16:10:56.241Z",
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"dateUpdated": "2026-08-21T16:43:10.933Z"
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},
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"containers": {
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"cna": {
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"descriptions": [
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{
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"lang": "en",
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"value": "In ONNX before 1.21.0, the 'save_external_data' function builds the external-data file path from the model's external_data location field and opens it for writing without 'O_NOFOLLOW/O_EXCL', after a non-atomic 'os.path.isfile()' check. A local attacker with write access to the directory where a victim serializes external data can deterministically pre-plant a symlink that is being followed, causing the victim's write to append to any file the victim can write, e.g. ~/.ssh/authorized_keys, cron files, or application configs. Fixed in 1.21.0."
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}
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],
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"affected": [
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{
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"vendor": "ONNX",
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"product": "ONNX",
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"lessThan": "1.21.0",
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"versionType": "custom"
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},
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{
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"version": "1.21.0",
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"status": "unaffected"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-367"
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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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"description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-22"
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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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"description": "CWE-59 Improper Link Resolution Before File Access ('Link Following')",
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-59"
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}
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.1,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
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"integrityImpact": "HIGH",
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"userInteraction": "REQUIRED",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"cvssV4_0": {
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"version": "4.0",
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"baseScore": 6.8,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
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"userInteraction": "ACTIVE",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"subIntegrityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnConfidentialityImpact": "NONE"
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}
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},
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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": "2026-05-27T16:00:11.944488Z",
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"id": "CVE-2026-49114",
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"options": [
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{
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"Exploitation": "poc"
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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": "ONNX symlink-following and path-traversal arbitrary file write",
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"references": [
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{
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"name": "url",
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"url": "https://github.com/onnx/onnx/security/advisories/GHSA-q56x-g2fj-4rj6",
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"tags": [
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"vendor-advisory",
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"exploit"
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]
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},
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{
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"name": "url",
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"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-233-01.json",
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"tags": [
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"third-party-advisory"
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]
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},
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{
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"name": "url",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-49114",
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"tags": [
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"vdb-entry"
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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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"value": "tsigouris007",
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"lang": "en"
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},
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{
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"value": "kpatsakis",
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"lang": "en"
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}
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],
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"datePublic": "2026-03-31T00:00:00.000Z",
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"providerMetadata": {
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"orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
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"shortName": "cisa-cg",
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"dateUpdated": "2026-08-21T16:10:56.241Z"
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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": "2026-08-21T16:42:42.598941Z",
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"id": "CVE-2026-49114",
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"options": [
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{
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"Exploitation": "poc"
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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": "2026-08-21T16:43:10.933Z"
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}
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}
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]
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}
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} |