GHSA-RXJ3-RRWM-PJ4R

Vulnerability from github – Published: 2026-04-03 06:31 – Updated: 2026-04-14 21:55
VLAI?
Summary
Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler
Details

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "roundcube/roundcubemail"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7-beta"
            },
            {
              "fixed": "1.7-rc5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35537"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-04T06:50:14Z",
    "nvd_published_at": "2026-04-03T04:17:10Z",
    "severity": "LOW"
  },
  "details": "An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.",
  "id": "GHSA-rxj3-rrwm-pj4r",
  "modified": "2026-04-14T21:55:54Z",
  "published": "2026-04-03T06:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35537"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/roundcube/roundcubemail"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5"
    },
    {
      "type": "WEB",
      "url": "https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/11/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler"
}


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