167 lines
7.2 KiB
JSON
167 lines
7.2 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-2026-18918",
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"assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
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"state": "PUBLISHED",
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"assignerShortName": "eclipse",
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"dateReserved": "2026-08-05T07:44:04.388Z",
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"datePublished": "2026-08-28T08:54:07.990Z",
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"dateUpdated": "2026-08-31T12:27:40.249Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
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"shortName": "eclipse",
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"dateUpdated": "2026-08-31T12:27:40.249Z"
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},
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"title": "OAuth 1.0 session-fixation chain via unauthenticated provisional-consumer registration and insecure v1_0Allowed default",
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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-863",
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"description": "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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"impacts": [
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{
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"capecId": "CAPEC-114",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-114"
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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": "Eclipse Foundation",
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"product": "Eclipse Lyo",
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"versions": [
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{
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"status": "affected",
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"version": "2.0.0",
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"lessThan": "7.0.0",
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"versionType": "custom"
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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": "In Eclipse Lyo versions 2.0.0 to 7.0.0, OAuth server authorization checks can be bypassed when the 2-legged auth is supported by the server. In those cases, application that based their authz filters upon Lyo-provided `AbstractAdapterCredentialsFilter`, are vulnerable. An attacked can create a provisional trusted client (valid use-case) but then it can be used as a trusted client immediately without requiring the administrator approval to clear the provisional status. The 3-legged path requiring user interaction is not vulnerable and rejects provisional clients.",
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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>In Eclipse Lyo versions 2.0.0 to 7.0.0, OAuth server authorization checks can be bypassed when the 2-legged auth is supported by the server. In those cases, application that based their authz filters upon Lyo-provided `AbstractAdapterCredentialsFilter`, are vulnerable. An attacked can create a provisional trusted client (valid use-case) but then it can be used as a trusted client immediately without requiring the administrator approval to clear the provisional status. The 3-legged path requiring user interaction is not vulnerable and rejects provisional clients.</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/eclipse-lyo/lyo/releases/tag/v6.0.1.Final"
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},
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{
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"url": "https://github.com/eclipse-lyo/lyo/releases/tag/v7.0.0.Beta3"
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},
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{
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"url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/221"
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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": "PRESENT",
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"privilegesRequired": "NONE",
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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": "YES",
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"Recovery": "USER",
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"valueDensity": "CONCENTRATED",
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"vulnerabilityResponseEffort": "LOW",
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"providerUrgency": "RED",
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"version": "4.0",
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"baseSeverity": "CRITICAL",
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"baseScore": 9.1,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/AU:Y/R:U/V:C/RE:L/U:Red"
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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": "Eclipse Foundation Security Team",
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"type": "finder"
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}
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],
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"source": {
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"discovery": "INTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.5"
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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": "2026-08-28T15:03:52.629478Z",
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"id": "CVE-2026-18918",
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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": "yes"
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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": "2026-08-28T15:04:16.704Z"
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}
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}
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]
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}
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} |