CVE-2026-114731

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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
2026-10-22T10:46:18Z
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",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "1.6.0"
                        },
                        {
                            "fixed":  "1.6.20"
                        },
                        {
                            "introduced":  "1.7.0"
                        },
                        {
                            "fixed":  "1.7.5"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "1.6.0"
                        },
                        {
                            "fixed":  "1.6.20"
                        },
                        {
                            "introduced":  "1.7.0"
                        },
                        {
                            "fixed":  "1.7.5"
                        }
                    ],
                    "source":  "CPE_FIELD",
                    "strategy":  "CPEApplicability"
                }
            ]
        },
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "1.6.20"
                        },
                        {
                            "introduced":  "1.7.x"
                        },
                        {
                            "fixed":  "1.7.5"
                        }
                    ],
                    "source":  "DESCRIPTION"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/roundcube/roundcubemail

Affected ranges

Type
GIT
Repo
https://github.com/roundcube/roundcubemail
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2c9f6da692fa37cad2aaf85d5b127b583d22b264
Fixed
26d1b077f0c910a16c44c1862fe26e15f0bb3685
Fixed
1dd910522e73318447ed6e20bed1efd7adeb240a
Fixed
99a5bdd05b01f45493cc0da4c96968eac7668126
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "2c9f6da692fa37cad2aaf85d5b127b583d22b264"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "1.7.5",
            "range":  [
                {
                    "fixed":  "26d1b077f0c910a16c44c1862fe26e15f0bb3685"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "1.6.20",
            "range":  [
                {
                    "fixed":  "1dd910522e73318447ed6e20bed1efd7adeb240a"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "range":  [
                {
                    "fixed":  "99a5bdd05b01f45493cc0da4c96968eac7668126"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

1.*
1.1-beta
1.1-rc
1.1.0
1.2-beta
1.2-rc
1.3-beta
1.4-beta
1.4-rc1
1.4-rc2
1.5-beta
1.5-rc
1.6-beta
1.6-rc
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-beta
1.7-beta2
1.7-rc
1.7-rc2
1.7-rc3
1.7-rc4
1.7-rc5
1.7-rc6
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
v0.*
v0.1-beta2

Database specific

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