CVE-2026-42258

MediumCVSS 5.3/10Last modified Aug 24, 2026

Description

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, symbol arguments to commands are vulnerable to a CRLF Injection / IMAP Command injection via Symbol arguments passed to IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Weakness enumeration

CWE-77 CWE-93

Affected software

No affected versions have been published.

Timeline

Published: May 9, 2026
Last modified: Aug 24, 2026
NVD status: Modified

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