Vulnerability · Published Jul 14, 2026 · Assigned by mitre
CVE-2026-62641
Medium 4.3
In plain English
A medium-severity resource allocation without limits in Webmail from Roundcube. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 83.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | roundcube | 1.6.5+dfsg-1+deb12u10 | DEBIAN-CVE-2026-62641 |
| Debian:13 | roundcube | 1.6.17+dfsg-0+deb13u1 | DEBIAN-CVE-2026-62641 |
| Debian:14 | roundcube | 1.6.17+dfsg-1 | DEBIAN-CVE-2026-62641 |
| Ubuntu:26.10 | roundcube | no fix listed | UBUNTU-CVE-2026-62641 |
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
References
- https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.2
- https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.17
- https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1