Is CVE-2026-114725 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-114725 being exploited in the wild.

How severe is CVE-2026-114725?

Medium severity, with a CVSS score of 5, published 22 October 2026.

Which products and versions are affected?

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5.

Is there a fix for CVE-2026-114725?

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-2026-114725 attacked?

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

Am I affected by CVE-2026-114725?

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-2026-114725: Roundcube Webmail mail header injection

CVE-2026-114725 · Severity: medium · CVSS 5 · Published 2026-10-22

Roundcube Webmail is a web-based email client used to access email accounts. The vulnerability allows authenticated users to inject arbitrary email headers into outgoing messages, which could be exploited to send fraudulent emails, bypass security filters, or perform phishing attacks. An attacker with account access could craft specially-formatted replies or forwards to inject malicious headers into messages sent to other recipients.

Technologies: Roundcube Webmail. Vendors: Roundcube.

Quick answers

Is CVE-2026-114725 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-114725 being exploited in the wild.
How severe is CVE-2026-114725?: Medium severity, with a CVSS score of 5, published 22 October 2026.
Which products and versions are affected?: Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5.
Is there a fix for CVE-2026-114725?: 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-2026-114725 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-114725?: 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 rcmail_sendmail function stripped newline characters only from the Subject and Organization headers, leaving References, In-Reply-To, Message-ID, and From header values taken from request parameters unsanitized. A remote authenticated attacker could inject arbitrary headers via these parameters due to insufficient whitespace normalization. The fix normalizes whitespace in all string header values to prevent injection.

Affected products

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5

Timeline

2026-10-22: disclosed
2026-10-19: advisory: Upstream security releases 1.6.20 and 1.7.5 published

References

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