Resource allocation without limits in Roundcube Webmail
Priority LOW 28CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.
Summary
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Fix Fixed Webmail (Roundcube): 1.6.17, 1.7.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Webmail (Roundcube) Fixed in 1.6.17, 1.7.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Roundcube Webmail 1.6.17, 1.7.2
6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-44757 Server-side request forgery in Roundcube WebmailPriority MEDIUM 49
- TI-2026-39306 Cross-site scripting in Roundcube WebmailPriority MEDIUM 49
- TI-2026-44758 Authentication bypass by spoofing in Roundcube WebmailPriority MEDIUM 42
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-62641
- 2026-10-03 Alias added: GHSA-wvvp-c8qh-3cc5
References
Patch 2
More Roundcube Webmail vulnerabilities
- TI-2025-31204 Deserialization of untrusted data in Roundcube Webmail KEVCVSS 3.1CRITICAL 9.9
- TI-2021-19778 Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params. KEVCVSS 3.1CRITICAL 9.8
- TI-2020-10051 rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary… KEVCVSS 3.1CRITICAL 9.8
- TI-2024-28025 A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7… KEVCVSS 3.1CRITICAL 9.3
- TI-2017-12250 Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows… KEVCVSS 3.1HIGH 7.8
- TI-2025-41994 Cross-site scripting in Roundcube Webmail KEVCVSS 3.1HIGH 7.2
Sources
- CVE-2026-62641 · CVE Program
- CVE-2026-62641 · NVD
- FIRST EPSS
- GHSA-wvvp-c8qh-3cc5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-62641 · 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