MEDIUMCVSS v3.1 5.8Vulnerability

CVE-2026-114726

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability in the Bounce (resend) action. rcube_mime::decode_address_list() did not strip control characters from the decoded display name, so a received message whose From display-name carries CRLF sequences in an encoded word could inject arbitrary headers into the message emitted when the user bounces it. Upstream fixed this in the commit “Fix mail header injection via the From display-name in the Bounce (resend) action”.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-22T22:14:18.200859+00:00
Epss score
0.0033
Cvss severity
MEDIUM
Cvss score
5.8
Retrieved at
2026-10-22T22:17:33+00:00
Last source
FIRST EPSS
Score
5.8
Cvss version
3.1
Cve id
CVE-2026-114726
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
First seen by Signal
2026-10-22T06:03:26+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Published at
2026-10-22T02:17:00.640
Last modified
2026-10-22T16:45:49.550
Epss percentile
0.24923

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]CWE-99

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CVE-2026-114726 (CVSS v3.1 5.8) — Ninja Signal Threat Intelligence | Ninja Signal