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-2026-94488",
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"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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"state": "PUBLISHED",
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"assignerShortName": "mitre",
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"dateReserved": "2026-09-21T17:29:01.000Z",
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"datePublished": "2026-09-21T17:29:01.776Z",
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"dateUpdated": "2026-09-21T17:51:18.874Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"export_output_html.cpp (HTML chat-export module)"
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],
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"platforms": [
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"Windows",
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"MacOS",
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"Linux"
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],
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"product": "Telegram Desktop",
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"programFiles": [
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"Telegram/SourceFiles/export/output/export_output_html.cpp"
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],
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"programRoutines": [
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{
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"name": "HtmlWriter::Wrap::pushMessage"
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}
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],
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"repo": "https://github.com/telegramdesktop/tdesktop",
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"vendor": "Telegram",
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"versions": [
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{
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"lessThan": "6.9.4",
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"status": "affected",
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"version": "4.15.1",
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"versionType": "semver"
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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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"value": "Telegram Desktop before 6.9.4 allows XSS in the HTML exporter. (The first fixed stable version is 7.0.1.) This occurs in button.text.toUtf8 in export_output_html.cpp. Exploitation cannot occur unless HTML export was used by a victim. However, the exploit payload can be exported if a message were forwarded into a group by a member (it is not necessary for the message author to be a member of a group)."
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "LOCAL",
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"baseScore": 8.3,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "ACTIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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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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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
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"version": "3.1"
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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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}
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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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"cweId": "CWE-79",
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"description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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"shortName": "mitre",
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"dateUpdated": "2026-09-21T17:29:01.776Z"
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},
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"references": [
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{
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"name": "tdesktop commit 8457d13a - Fix escaping in HTML export of keyboards",
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"tags": [
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"patch"
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],
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"url": "https://github.com/telegramdesktop/tdesktop/commit/8457d13aa795fadf99c955d2a04f00ebc3c59df9"
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},
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{
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"name": "tdesktop commit 52c779bf - Added support of inline markup reply to HTML export (introduces the issue)",
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"tags": [
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"related"
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],
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"url": "https://github.com/telegramdesktop/tdesktop/commit/52c779bffa8dde3c5c09826add2607328fae0924"
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},
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{
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"name": "Telegram Desktop v6.9.4 - first release containing the fix",
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"tags": [
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"release-notes"
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],
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"url": "https://github.com/telegramdesktop/tdesktop/releases/tag/v6.9.4"
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},
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{
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"name": "Vulnerable export_output_html.cpp as shipped in v6.9.3",
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"tags": [
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"related"
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],
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"url": "https://github.com/telegramdesktop/tdesktop/blob/v6.9.3/Telegram/SourceFiles/export/output/export_output_html.cpp"
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},
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{
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"name": "Expatch LLC technical write-up",
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"tags": [
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"third-party-advisory",
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"technical-description",
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"exploit"
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],
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"url": "https://expatch.com/writeups/telegram-html-export-xss.html"
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},
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{
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"tags": [
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"media-coverage"
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],
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"url": "https://thehackernews.com/2026/09/telegram-desktop-flaw-lets-hidden.html"
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}
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],
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"x_generator": {
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"engine": "CVE-Request-form 0.0.1"
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},
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:telegram:telegram_desktop:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.15.1",
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"versionEndExcluding": "6.9.4"
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}
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]
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}
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]
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}
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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": "2026-09-21T17:51:08.525648Z",
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"id": "CVE-2026-94488",
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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": "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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}
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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": "2026-09-21T17:51:18.874Z"
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}
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}
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]
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}
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} |