CVEvulnerability
CVE-2026-114725
5.0 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-22
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.0 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
- Weaknesses
- CWE-99
Description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability. rcmail_sendmail stripped newline characters only from the Subject and Organization headers, leaving other header values taken from request parameters unsanitized, so a remote authenticated attacker could inject arbitrary headers into an outgoing message via the References, In-Reply-To, Message-ID and From parameters. Upstream fixed this in the commit “Fix mail header injection via References/In-Reply-To/Message-ID/From parameters”, which normalizes whitespace in every string header value.
Affected configurations
• roundcube webmail (>= 1.6.0 < 1.6.20)
• roundcube webmail (>= 1.7.0 < 1.7.5)
Related
Weakness · CWE (1)
- CWE-99 Improper Control of Resource Identifiers weakness
References
- https://bugs.debian.org/1151279 Third Party Advisory
- https://github.com/roundcube/roundcubemail/commit/79adcfc0c48012bbbe930278471425027fd7331c Patch, Mailing List
- https://github.com/roundcube/roundcubemail/commit/acd32a86f631dd6dcda8ac3ec7bd9ba4d4c0c117 Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 Release Notes
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 Issue Tracking