212 lines
8.9 KiB
JSON
212 lines
8.9 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-2026-18655",
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"assignerOrgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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"state": "PUBLISHED",
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"assignerShortName": "AMZN",
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"dateReserved": "2026-08-03T13:08:30.204Z",
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"datePublished": "2026-08-03T19:04:12.505Z",
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"dateUpdated": "2026-08-03T19:52:25.587Z"
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},
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"containers": {
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"orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
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"shortName": "AMZN",
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"dateUpdated": "2026-08-03T19:06:26.303Z"
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},
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"title": "Broker Credential and OAuth Token Disclosure in AWS Labs Amazon MQ MCP Server via Prompt Injection",
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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-923",
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"description": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints",
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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-137",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-137 Parameter Injection"
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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": "AWS",
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"product": "amazon-mq-mcp-server",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThanOrEqual": "2.0.23",
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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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"operator": "OR",
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"vulnerable": true,
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"criteria": "cpe:2.3:a:aws:amazon-mq-mcp-server:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "0",
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"versionEndIncluding": "2.0.23"
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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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"descriptions": [
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{
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"lang": "en",
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"value": "Improper restriction of intended endpoints in the RabbitMQ broker connection tools of the Amazon MQ MCP Server (awslabs.amazon-mq-mcp-server) before 2.0.24 may allow a remote unauthenticated actor (via prompt injection) to obtain Amazon MQ for RabbitMQ broker credentials or OAuth access tokens sent to a crafted endpoint controlled through a broker hostname introduced in the MCP client context.\n\n\n\nTo remediate this issue, users should upgrade to version 2.0.24.",
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"supportingMedia": [
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{
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"value": "<p>Improper restriction of intended endpoints in the RabbitMQ broker connection tools of the Amazon MQ MCP Server (awslabs.amazon-mq-mcp-server) before <strong>2.0.24</strong> may allow a remote unauthenticated actor (via prompt injection) to obtain Amazon MQ for RabbitMQ broker credentials or OAuth access tokens sent to a crafted endpoint controlled through a broker hostname introduced in the MCP client context.</p><p>To remediate this issue, users should upgrade to version 2.0.24.</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://pypi.org/project/awslabs.amazon-mq-mcp-server/2.0.24/",
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"tags": [
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"release-notes",
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"patch"
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]
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},
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{
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"url": "https://aws.amazon.com/security/security-bulletins/2026-070-aws/",
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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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"url": "https://github.com/awslabs/mcp/security/advisories/GHSA-xwj6-8x5h-hjp6",
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"tags": [
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"release-notes"
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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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"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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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "REQUIRED",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.5,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
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}
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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": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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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": 7.1,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
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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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"x_generator": {
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"engine": "Vulnogram 1.0.4"
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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": "2026-08-03T19:52:05.730514Z",
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"id": "CVE-2026-18655",
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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": "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": "2026-08-03T19:52:25.587Z"
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}
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}
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]
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}
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} |