CVE-2026-114731

Source
https://cve.org/CVERecord?id=CVE-2026-114731
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114731.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-114731
Downstream
Published
2026-10-22T02:12:34Z
Modified
2026-11-05T03:29:45Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

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.

Database specific
{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114731.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": "1.6.20"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.7.0"
                },
                {
                    "fixed": "1.7.5"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "2c9f6da692fa37cad2aaf85d5b127b583d22b264"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "99a5bdd05b01f45493cc0da4c96968eac7668126"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "1.6.20",
            "range": [
                {
                    "fixed": "1dd910522e73318447ed6e20bed1efd7adeb240a"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "1.7.5",
            "range": [
                {
                    "fixed": "26d1b077f0c910a16c44c1862fe26e15f0bb3685"
                }
            ],
            "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
1.6.18
1.6.19
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
1.7.3
1.7.4

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114731.json"