{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72588", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "state": "PUBLISHED", "assignerShortName": "TuranSec", "dateReserved": "2026-08-10T10:32:53.854Z", "datePublished": "2026-08-10T10:41:39.341Z", "dateUpdated": "2026-08-10T13:22:16.638Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-10T10:57:15.318Z"}, "title": "bluewave-labs Checkmate - User Enumeration via Differential HTTP Response in Password Recovery", "descriptions": [{"lang": "en", "value": "A user enumeration vulnerability in bluewave-labs/Checkmate through 2.1.0 allows an unauthenticated remote attacker to determine whether a given email address is registered. The POST /api/v1/auth/recovery/request endpoint returns HTTP 200 for registered email addresses and a different status code for unregistered ones, enabling attackers to enumerate valid user accounts.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>A user enumeration vulnerability in bluewave-labs/Checkmate through 2.1.0 allows an unauthenticated remote attacker to determine whether a given email address is registered. The POST /api/v1/auth/recovery/request endpoint returns HTTP 200 for registered email addresses and a different status code for unregistered ones, enabling attackers to enumerate valid user accounts.</p>"}]}], "affected": [{"vendor": "bluewave-labs", "product": "Checkmate", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "2.1.0"}], "defaultStatus": "unknown"}], "references": [{"url": "https://github.com/bluewave-labs/Checkmate", "name": "Product", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Kamron Rasuljonov", "type": "finder"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-204", "description": "CWE-204: Observable Response Discrepancy"}]}], "timeline": [{"time": "2026-08-10T10:32:53.000Z", "lang": "en", "value": "CVE Reserved"}, {"time": "2026-08-10T10:32:53.000Z", "lang": "en", "value": "Public Disclosure"}], "source": {"discovery": "EXTERNAL"}, "datePublic": "2026-08-10T10:32:53.000Z"}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-10T13:22:07.396244Z", "id": "CVE-2026-72588", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-10T13:22:16.638Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2.1.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Checkmate", "source": "cna", "vendor": "bluewave-labs"}, "product": "checkmate", "vendor": "bluewave-labs"}], "created": "2026-08-10T12:45:03.879150+00:00", "updated": "2026-08-10T12:45:03.986165+00:00", "vendors": ["bluewave-labs", "bluewave-labs$PRODUCT$checkmate"]}