Vulnerabilities in pkg:golang/github.com/opencloud-eu/opencloud

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vf5j-r2hw-2hrw",
  "modified" : "2026-02-05T21:29:26Z",
  "published" : "2026-02-05T21:29:26Z",
  "aliases" : [ ],
  "summary" : "OpenCloud Affected by Public Link Exploit",
  "details" : "### Impact\n\nA security issue was discovered in [Reva](https://github.com/opencloud-eu/reva) that enables a malicious user to bypass the scope validation of a public link. That allows it to access resources outside the scope of a public link.\n\nOpenCloud uses Reva as one of its core components and thus it is affected.\n\n### Patches\n\nUpdate to OpenCloud version >= 4.0.3 (stable release)\nUpdate to OpenCloud version >= 5.0.2 (rolling release)\n\n### Workarounds\n\nIf projects are unable to update immediately, please implement the following security configuration to disable public link shares temporarily until the final solution for this problem is rolled out.\n\n#### Configuration Adjustment\n\n* Docker Compose: Edit the docker-compose.yml and add `GATEWAY_STORAGE_PUBLIC_LINK_ENDPOINT=“”` (empty string value) in the `environment` section of the `opencloud` container.\n\n\n#### Verification of Mitigation\n\nExecute the following test: \n- Create a public link for testing. \n- Open the link url in a private (no active login) browser tab. \n- An error page with “unknown error” will be displayed.\n\nThis configuration provides immediate protection and should be implemented immediately. Configuration mitigation is available. It mitigates the problem completely.\n\n### For more information\n\nIf there are questions or comments about this advisory:\n\n- Security Support: [security@opencloud.eu](mailto:security@opencloud.eu)\n- Technical Support: [support@opencloud.eu](mailto:support@opencloud.eu)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/opencloud-eu/opencloud"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.0.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/opencloud-eu/opencloud"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0"
      }, {
        "fixed" : "5.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/opencloud-eu/opencloud/security/advisories/GHSA-vf5j-r2hw-2hrw"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/opencloud-eu/opencloud"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-05T21:29:26Z",
    "nvd_published_at" : null
  }
}