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CVE-2026-114716

8.5 high SSVC exploitation: none Published
NVD · CVE.org

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability. rcmail_sendmail::extract_inline_images() used the media type taken from an inline image data URI without validating it, so a remote authenticated attacker could inject arbitrary MIME part headers into the outgoing message by placing CRLF sequences in that media type. Upstream fixed this in the commit “Fix mail header injection via media type in an inline image data URI”, which validates the media type with rcube_mime::is_mimetype_valid().

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 7

  1. StatusUndergoing Analysis → PublishedNVD modified 2026-10-26 16:46
  2. StatusPublished → Undergoing AnalysisNVD modified 2026-10-26 17:17
  3. StatusUndergoing Analysis → PublishedNVD modified 2026-10-22 01:17
  4. StatusPublished → Undergoing AnalysisNVD modified 2026-10-22 16:45
  5. StatusReceived → PublishedNVD modified 2026-10-22 01:17
  6. StatusPublished → ReceivedNVD modified 2026-10-22 02:16
  7. First seenCVSS 8.5 · roundcubeNVD modified 2026-10-22 01:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 6