Is CVE-2026-114730 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-114730 being exploited in the wild.

How severe is CVE-2026-114730?

High severity, with a CVSS score of 7.2, published 22 October 2026.

Which products and versions are affected?

Roundcube Webmail 1.6.14 before 1.6.20, 1.7.0 before 1.7.5.

Is there a fix for CVE-2026-114730?

Yes: fixed in Roundcube Webmail 1.6.20, 1.7.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-114730 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-114730?

Check whether you run Roundcube Webmail at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-114730: Roundcube Webmail server-side request forgery filter bypass

CVE-2026-114730 · Severity: high · CVSS 7.2 · Published 2026-10-22

Roundcube Webmail is a web-based email client used by organizations to access corporate mail. A flaw in its security filter allows attackers to bypass protections and access sensitive internal services like cloud metadata endpoints, potentially leading to credential theft or information disclosure.

Technologies: Roundcube Webmail. Vendors: Roundcube.

Quick answers

Is CVE-2026-114730 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-114730 being exploited in the wild.
How severe is CVE-2026-114730?: High severity, with a CVSS score of 7.2, published 22 October 2026.
Which products and versions are affected?: Roundcube Webmail 1.6.14 before 1.6.20, 1.7.0 before 1.7.5.
Is there a fix for CVE-2026-114730?: Yes: fixed in Roundcube Webmail 1.6.20, 1.7.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-114730 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-114730?: Check whether you run Roundcube Webmail at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Roundcube Webmail 1.6.20, 1.7.5

Technical details

The is_local_url() function in rcube_utils omitted RFC 6052 and RFC 8215 NAT64 address ranges (64:ff9b::/96, 64:ff9b:1::/48) and the IPv6 unspecified address ::/128 from its blocklist, allowing crafted IPv6 URLs like http://[64:ff9b::7f00:1]/ to reach loopback and cloud metadata addresses. An attacker can craft specially-formatted URLs in email content or application input to bypass SSRF protections with no authentication required.

Affected products

Roundcube Webmail 1.6.14 before 1.6.20, 1.7.0 before 1.7.5

Timeline

2026-10-22: disclosed
2026-10-19: patched

References

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