CVE-2026-75004

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-75004", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-08-17T12:53:49.733Z", "datePublished": "2026-08-17T12:53:50.097Z", "dateUpdated": "2026-08-17T14:37:04.784Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Webmail", "vendor": "Roundcube", "versions": [{"lessThan": "1.6.18", "status": "affected", "version": "1.6.0", "versionType": "semver"}, {"lessThan": "1.7.3", "status": "affected", "version": "1.7.0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesieve_disabled_actions setting bypass via a crafted rule name in a Sieve script. This issue only affects Roundcube instances using the managesieve plugin."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-77", "description": "CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-08-17T12:53:50.097Z"}, "references": [{"url": "https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.18"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.3"}], "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": "1.6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.7.0", "versionEndExcluding": "1.7.3"}]}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-17T14:36:54.974889Z", "id": "CVE-2026-75004", "options": [{"Exploitation": "none"}, {"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": "2026-08-17T14:37:04.784Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-75004", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-17T14:36:54.974889Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-17T14:37:00.796Z"}}], "cna": {"metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Roundcube", "product": "Webmail", "versions": [{"status": "affected", "version": "1.6.0", "lessThan": "1.6.18", "versionType": "semver"}, {"status": "affected", "version": "1.7.0", "lessThan": "1.7.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.18"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.3"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "descriptions": [{"lang": "en", "value": "In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesieve_disabled_actions setting bypass via a crafted rule name in a Sieve script. This issue only affects Roundcube instances using the managesieve plugin."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-77", "description": "CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "1.6.18", "versionStartIncluding": "1.6.0"}, {"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "1.7.3", "versionStartIncluding": "1.7.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-08-17T12:53:50.097Z"}}}, "cveMetadata": {"cveId": "CVE-2026-75004", "state": "PUBLISHED", "dateUpdated": "2026-08-17T14:37:04.784Z", "dateReserved": "2026-08-17T12:53:49.733Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2026-08-17T12:53:50.097Z", "assignerShortName": "mitre"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Webmail", "vendor": "Roundcube", "versions": [{"lessThan": "1.6.18", "status": "affected", "version": "1.6.0", "versionType": "semver"}, {"lessThan": "1.7.3", "status": "affected", "version": "1.7.0", "versionType": "semver"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "matchCriteriaId": "D51A5415-8AC6-49A9-AAA8-9ED72D9A551E", "versionEndExcluding": "1.6.18", "versionStartIncluding": "1.6.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*", "matchCriteriaId": "D5C9B7FB-8223-444C-B728-6E724AC2F0C9", "versionEndExcluding": "1.7.3", "versionStartIncluding": "1.7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesieve_disabled_actions setting bypass via a crafted rule name in a Sieve script. This issue only affects Roundcube instances using the managesieve plugin."}], "id": "CVE-2026-75004", "lastModified": "2026-09-08T18:46:33.850", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cve@mitre.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75004", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-17T14:36:54.974889Z", "version": "2.0.3"}}]}, "published": "2026-08-17T13:16:55.070", "references": [{"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.18"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.3"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}], "source": "cve@mitre.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.6.0,1.6.18)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.7.0,1.7.3)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Webmail", "source": "cna", "vendor": "Roundcube"}, "product": "webmail", "vendor": "roundcube"}], "created": "2026-08-17T14:45:04.137191+00:00", "title": "Improper Rule Name Quoting Allows managesieve Disabled Actions Bypass in Roundcube Webmail", "updated": "2026-08-17T15:00:08.165961+00:00", "vendors": ["roundcube", "roundcube$PRODUCT$webmail"]}