{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "wekan",
          "vendor": "wekan",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.31"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-15T21:07:16.921Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "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"
        }
      ],
      "source": {
        "advisory": "GHSA-g6vm-7757-pr88",
        "discovery": "UNKNOWN"
      },
      "title": "Wekan: Arbitrary file read and server DoS via attachment versions.original.path"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-52890",
    "datePublished": "2026-07-15T21:07:16.921Z",
    "dateReserved": "2026-06-08T21:44:27.365Z",
    "dateUpdated": "2026-07-15T21:07:16.921Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-52890",
      "date": "2026-06-14",
      "epss": "0.00074",
      "percentile": "0.22647"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-52890\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-15T22:17:16.310\",\"lastModified\":\"2026-07-15T22:17:16.310\",\"vulnStatus\":\"Received\",\"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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"wekan\",\"product\":\"wekan\",\"versions\":[{\"version\":\"\u003c 9.31\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"},{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"references\":[{\"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\":\"security-advisories@github.com\"}]}}"
  }
}