186 lines
7.6 KiB
JSON
186 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-2026-103259",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-09-30T10:55:39.869Z",
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"datePublished": "2026-10-01T10:42:02.817Z",
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"dateUpdated": "2026-10-01T19:27:17.460Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-10-01T10:42:02.817Z"
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},
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"datePublic": "2026-09-16T00:00:00.000Z",
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"title": "n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Leak via Dynamic Credentials",
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"descriptions": [
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{
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"lang": "en",
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"value": "n8n versions before 2.39.6 and 2.40.0 before 2.40.1 contain a session token leakage vulnerability in the Dynamic Credentials authorize and revoke endpoints. Attackers with resolver registration capability can capture collaborators' session tokens by setting a fallback resolver to an attacker-controlled endpoint during the account connection flow, enabling unauthorized credential access."
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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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"lang": "en",
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"description": "Incorrect Authorization",
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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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"affected": [
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{
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"vendor": "n8n-io",
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"product": "n8n",
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"defaultStatus": "unaffected",
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"packageURL": "pkg:npm/n8n",
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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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"versionType": "semver",
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"lessThan": "2.39.6"
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},
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{
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"version": "2.40.0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "2.40.1"
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}
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]
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}
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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:n8n:n8n:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2.39.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.40.0",
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"versionEndExcluding": "2.40.1"
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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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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:L/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "HIGH",
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"userInteraction": "ACTIVE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "HIGH",
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"subIntegrityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.5,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "HIGH",
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"userInteraction": "REQUIRED",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 7.6,
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"baseSeverity": "HIGH"
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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/n8n-io/n8n/security/advisories/GHSA-rx55-8qhx-4hwx",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-rx55-8qhx-4hwx)"
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},
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{
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"name": "VulnCheck Advisory: n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Leak via Dynamic Credentials",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/n8n-before-2.39.6-and-2.40-x-before-2.40.1-session-token-leak-via-dynamic-credentials"
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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": "nlgbao1340",
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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": "vulncheck-endgame"
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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": "2026-10-01T19:27:04.162380Z",
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"id": "CVE-2026-103259",
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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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}
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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": "2026-10-01T19:27:17.460Z"
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}
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}
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]
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}
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} |