CVE-2026-48845

In Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16 and 1.7.x before 1.7.1, remote image blocking was not honored for URLs pointing to local/private destinations, which may lead to information disclosure or privilege escalation via a text/html email message.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/roundcube/roundcubemail/commit/7b52353653a67e6073b97d70eb94047132b78556
https://github.com/roundcube/roundcubemail/commit/d82b8c6cd06c378eca6d647ccd548f4ff1c68659
https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-25 20:16

Updated : 2026-07-24 10:10

NVD link : CVE-2026-48845

Mitre link : CVE-2026-48845

CVE.ORG link : CVE-2026-48845

JSON object : View

Products Affected

No product.

CWE

CWE-669

Incorrect Resource Transfer Between Spheres

{"id": "CVE-2026-48845", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48845", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-26T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "Roundcube", "product": "Webmail", "versions": [{"status": "affected", "version": "1.6.14", "lessThan": "1.6.16", "versionType": "semver"}, {"status": "affected", "version": "1.7.0", "lessThan": "1.7.1", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-25T20:16:37.027", "references": [{"url": "https://github.com/roundcube/roundcubemail/commit/7b52353653a67e6073b97d70eb94047132b78556", "source": "cve@mitre.org"}, {"url": "https://github.com/roundcube/roundcubemail/commit/d82b8c6cd06c378eca6d647ccd548f4ff1c68659", "source": "cve@mitre.org"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.16", "source": "cve@mitre.org"}, {"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.1", "source": "cve@mitre.org"}, {"url": "https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1", "source": "cve@mitre.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-669"}]}], "descriptions": [{"lang": "en", "value": "In Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16 and 1.7.x before 1.7.1, remote image blocking was not honored for URLs pointing to local/private destinations, which may lead to information disclosure or privilege escalation via a text/html email message."}, {"lang": "es", "value": "En Roundcube Webmail 1.6.x entre 1.6.14 y 1.6.16 y 1.7.x antes de 1.7.1, el bloqueo remoto de im\u00e1genes no se respetaba para las URL que apuntaban a destinos locales/privados, lo que puede llevar a revelaci\u00f3n de informaci\u00f3n o escalada de privilegios a trav\u00e9s de un mensaje de correo electr\u00f3nico text/html."}], "lastModified": "2026-07-24T10:10:00.197", "sourceIdentifier": "cve@mitre.org"}