Arbitrary Command Injection Affecting ruby3.3-net-imap package, versions <0.6.4-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.09% (26th percentile)

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  • Snyk IDSNYK-WOLFILATEST-RUBY33NETIMAP-16780267
  • published20 May 2026
  • disclosed9 May 2026

Introduced: 9 May 2026

NewCVE-2026-42258  (opens in a new tab)
CWE-77  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade Wolfi ruby3.3-net-imap to version 0.6.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby3.3-net-imap package and not the ruby3.3-net-imap package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1