CVE-2026-52890

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52890", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T21:44:27.365Z", "datePublished": "2026-07-15T21:07:16.921Z", "dateUpdated": "2026-07-16T12:59:24.289Z"}, "containers": {"cna": {"title": "Wekan: Arbitrary file read and server DoS via attachment versions.original.path", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88"}, {"name": "https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8", "tags": ["x_refsource_MISC"], "url": "https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8"}, {"name": "https://github.com/wekan/wekan/releases/tag/v9.31", "tags": ["x_refsource_MISC"], "url": "https://github.com/wekan/wekan/releases/tag/v9.31"}], "affected": [{"vendor": "wekan", "product": "wekan", "versions": [{"version": "< 9.31", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-15T21:07:16.921Z"}, "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31."}], "source": {"advisory": "GHSA-g6vm-7757-pr88", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-16T12:59:05.040500Z", "id": "CVE-2026-52890", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-07-16T12:59:24.289Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-52890", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-16T12:59:05.040500Z"}}}], "references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-16T12:59:19.765Z"}}], "cna": {"title": "Wekan: Arbitrary file read and server DoS via attachment versions.original.path", "source": {"advisory": "GHSA-g6vm-7757-pr88", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "wekan", "product": "wekan", "versions": [{"status": "affected", "version": "< 9.31"}]}], "references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88", "name": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8", "name": "https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/wekan/wekan/releases/tag/v9.31", "name": "https://github.com/wekan/wekan/releases/tag/v9.31", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-15T21:07:16.921Z"}}}, "cveMetadata": {"cveId": "CVE-2026-52890", "state": "PUBLISHED", "dateUpdated": "2026-07-16T12:59:24.289Z", "dateReserved": "2026-06-08T21:44:27.365Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-15T21:07:16.921Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "wekan", "vendor": "wekan", "versions": [{"status": "affected", "version": "< 9.31"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31."}], "id": "CVE-2026-52890", "lastModified": "2026-07-16T14:16:53.827", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-52890", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-16T12:59:05.040500Z", "version": "2.0.3"}}]}, "published": "2026-07-15T22:17:16.310", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/commit/fc92b342ceedcf38dbd614a0f7b50d6dc2b22eb8"}, {"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/releases/tag/v9.31"}, {"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/wekan/wekan/security/advisories/GHSA-g6vm-7757-pr88"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,9.31)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "wekan", "source": "cna", "vendor": "wekan"}, "product": "wekan", "vendor": "wekan"}], "created": "2026-07-15T23:15:15.709839+00:00", "updated": "2026-07-31T02:45:04.364072+00:00", "vendors": ["wekan", "wekan$PRODUCT$wekan"]}