CVE-2026-74998

Source
https://cve.org/CVERecord?id=CVE-2026-74998
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74998.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74998
Downstream
DEBIAN (1)
openSUSE (2)
UBUNTU (1)
Related
Published
2026-08-17T12:40:29Z
Modified
2026-11-01T17:28:00Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information disclosure or XSS (cross-site scripting) via MIME sniffing.

Database specific
{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74998.json"
}
References

Affected packages

Git / github.com/roundcube/roundcubemail

Affected ranges

Type
GIT
Repo
https://github.com/roundcube/roundcubemail
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.6.0"
                },
                {
                    "fixed": "1.6.18"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.7.0"
                },
                {
                    "fixed": "1.7.3"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "62d33c8a0dc3fd0dd03984220dc9709e8e0de43b"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "a2334990c02f7cb77b1a8d6fa97fcd9e1b5cd1fb"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "1.6.18",
            "range": [
                {
                    "fixed": "4a2bb87d9ea93578acb9bb03599abf754c33a33f"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "1.7.3",
            "range": [
                {
                    "fixed": "8473c30fd06f1aa4cfe4304ec54f54aef3b45abe"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.6.0
1.6.1
1.6.10
1.6.11
1.6.12
1.6.13
1.6.14
1.6.15
1.6.16
1.6.17
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.7.0
1.7.1
1.7.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74998.json"