{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-114731", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-10-22T02:12:34.183Z", "datePublished": "2026-10-22T02:12:34.577Z", "dateUpdated": "2026-10-22T02:12:34.577Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Webmail", "repo": "https://github.com/roundcube/roundcubemail/", "vendor": "Roundcube", "versions": [ { "lessThan": "1.6.20", "status": "affected", "version": "1.6.0", "versionType": "semver" }, { "lessThan": "1.7.5", "status": "affected", "version": "1.7.0", "versionType": "semver" } ] } ], "descriptions": [ { "lang": "en", "value": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an uncontrolled resource consumption vulnerability in the CSS proxy (the utils/modcss action). The fetched stylesheet was read into memory in full, with no size limit and no read timeout, so a stylesheet URL referencing an attacker-controlled host could be used to exhaust server memory. Upstream fixed this in the commit “Add a size limit to the CSS proxy content processing”, which caps the response at 5 MB, reads it as a stream and applies a read timeout." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-770", "description": "CWE-770 Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-10-22T02:12:34.577Z" }, "references": [ { "tags": [ "issue-tracking", "third-party-advisory" ], "url": "https://bugs.debian.org/1151279" }, { "tags": [ "patch" ], "url": "https://github.com/roundcube/roundcubemail/commit/2c9f6da692fa37cad2aaf85d5b127b583d22b264" }, { "tags": [ "vendor-advisory", "release-notes" ], "url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5" }, { "tags": [ "release-notes", "patch" ], "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5" }, { "tags": [ "release-notes", "patch" ], "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20" }, { "tags": [ "patch" ], "url": "https://github.com/roundcube/roundcubemail/commit/99a5bdd05b01f45493cc0da4c96968eac7668126" } ], "x_generator": { "engine": "CVE-Request-form 0.0.1" }, "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.6.0", "versionEndExcluding": "1.6.20" }, { "vulnerable": true, "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.7.0", "versionEndExcluding": "1.7.5" } ] } ] } ] } } }