CVE-2026-42258

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.

Score
CVSS 3.1 7.1 High
Status
Modified - security-advisories@github.com
Published
2026-05-09
Last modified
2026-09-01
Weaknesses
CWE-77, CWE-93

Affected products

References

 
 
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