HIGHCVSS v3.1 7.2Vulnerability
CVE-2026-114730
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”.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00312
- Cvss severity
- HIGH
- Cvss score
- 7.2
- Retrieved at
- 2026-10-22T22:17:33+00:00
- Last source
- FIRST EPSS
- Score
- 7.2
- Cvss version
- 3.1
- Cve id
- CVE-2026-114730
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- First seen by Signal
- 2026-10-22T06:03:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Published at
- 2026-10-22T03:16:38.217
- Last modified
- 2026-10-22T16:45:49.550
- Epss percentile
- 0.22802
Related Entities (1)
HAS_WEAKNESS (1)
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