Roundcube Webmail through 1.3.9 mishandles Punycode xn-- domain names, leading to homograph attacks.
Priority LOW 34Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Roundcube Webmail through 1.3.9 mishandles Punycode xn-- domain names, leading to homograph attacks.
Why it matters now
EPSS 0.01031 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* | up to 1.3.9 | Vulnerable | Roundcube |
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | 29 | Vulnerable | Fedoraproject |
- cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* Versions up to 1.3.9 Vulnerable ·Roundcube
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-15237
- 2026-10-03 Alias added: GHSA-j43j-vfwj-cc4j
References
Sources
- CVE-2019-15237 · CVE Program
- CVE-2019-15237 · NVD
- FIRST EPSS
- GHSA-j43j-vfwj-cc4j · GitHub Advisory Database · CC BY 4.0
- CVE-2019-15237 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences