Vulnerability · Published May 25, 2026 · Assigned by mitre
CVE-2026-48842
High 8.1
In plain English
A high-severity SQL injection 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 1.7% (higher than 77% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)1.7%top 22.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | roundcube | 1.6.5+dfsg-1+deb12u9 | DEBIAN-CVE-2026-48842 |
| Debian:13 | roundcube | 1.6.16+dfsg-0+deb13u1 | DEBIAN-CVE-2026-48842 |
| Debian:14 | roundcube | 1.6.16+dfsg-1 | DEBIAN-CVE-2026-48842 |
| Ubuntu:25.10 | roundcube | no fix listed | UBUNTU-CVE-2026-48842 |
| Ubuntu:26.10 | roundcube | no fix listed | UBUNTU-CVE-2026-48842 |
Affected products (as reported)
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
- https://github.com/roundcube/roundcubemail/commit/3406183a9976e36f992d3468f37d0e2346526ee9
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
- https://github.com/roundcube/roundcubemail/commit/87124cc7136a48b5fa9d2b40dfead6e9dcaeaf4b
- http://www.openwall.com/lists/oss-security/2026/06/03/17