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CRLF Injection The advisory has been revoked - it doesn't affect any version of package rubygem-minitest  (opens in a new tab)

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EPSS
0.83% (56th percentile)

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  • Snyk IDSNYK-RHEL10-RUBYGEMMINITEST-17944122
  • published11 Jul 2026
  • disclosed22 Jun 2026
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Introduced: 22 Jun 2026

CVE-2026-47240  (opens in a new tab)
CWE-93  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-minitest package and not the rubygem-minitest package as distributed by RHEL.

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing literals, it may still be possible to inject arbitrary IMAP commands inside non-synchronizing literals. A server without support for non-synchronizing literals may interpret the "+}\r\n" as the end of a malformed command line and respond with a tagged BAD. In that case, the contents of the literal will be interpreted as one or more new pipelined commands, allowing a CRLF command injection attack to succeed. This affects criteria for #search and #uid_search; search_keys for #sort, #thread, #uid_sort, and #uid_thread; and attr for #fetch and #uid_fetch. This vulnerability is fixed in 0.6.5 and 0.5.15.