Bug 2558745 (CVE-2026-114730) - CVE-2026-114730 roundcubemail: roundcubemail: Server-Side Request Forgery via address filter bypass
Summary: CVE-2026-114730 roundcubemail: roundcubemail: Server-Side Request Forgery via...
Keywords:
Status: NEW
Alias: CVE-2026-114730
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2558789 2558790
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-22 02:42 UTC by OSIDB Bzimport
Modified: 2026-10-22 09:20 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-22 02:42:29 UTC 
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”.
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