CVE-2026-114730

highpriority · track · 0EPSS 0.003 · 23 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (23rd) EPSS

CVSS 7.2 · high

Is it mine?

0 products

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Who says so?

— sources

EPSS · scored 2026-10-23

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”.

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nsecondary · cve@mitre.org USexploitability 3.9 · impact 2.7

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-918USprimaryCWE-918US

affected products

Products and version ranges known to be affected.

No affected products recorded.

sources

Which sources assert this record, and when.

NVD CVE.org MITRE

published 2026-10-22modified 2026-10-22

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+4150 more

references (6) nvd

External citations — patches, advisories, analysis.

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