MSRXVulnerabilities / CVE-2026-114730
CVE-2026-114730
Published 2026-10-22 · published (not yet in NVD)
CVE-2026-114730
7.2 HIGH
CVSS 3.1 · CNA
CVSS 3.1 · CNA
0.3%
chance of exploitation in the next 30 days (EPSS; higher than 24% of CVEs)
chance of exploitation in the next 30 days (EPSS; higher than 24% of CVEs)
Roundcube Webmail 1.6.14 before 1.6.20 and 1.7.0 before 1.7.5 is affected by a server-side request forgery filter bypass. The network blocklist used by rcube_utils::is_local_url() omitted the RFC 6052 NAT64 prefix 64:ff9b::/96, the RFC 8215 local-use NAT64 prefix 64:ff9b:1::/48 and the unspecified address ::/128, so URLs such as http://[64:ff9b::7f00:1]/ passed the filter and reached loopback, link-local and cloud metadata addresses. Upstream fixed this in the commit “Fix SSRF filter (is_local_url()) bypass via NAT64 64:ff9b::/96”.
Scores
Affected products
- Roundcube Webmail: 1.6.14 to < 1.6.20; 1.7.0 to < 1.7.5
Weakness: CWE-918
6 references (advisories, patches, write-ups)
- https://bugs.debian.org/1151279 · issue-tracking, third-party-advisory
- https://github.com/roundcube/roundcubemail/commit/6e1d480e730a45f29829b6a11af608d5d6eb3db6 · patch
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 · vendor-advisory, release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 · release-notes, patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 · release-notes, patch
- https://github.com/roundcube/roundcubemail/commit/3c3a65f66b53b7aaf3d720acd06e0b102eceb090 · patch
Sources: CVE.org, OSV.dev, FIRST EPSS. Missing ones did not answer or have no record yet.