Arbitrary Command Injection Affecting rubygem-bigdecimal-debuginfo package, versions <0:4.0.1-34.module+el9.8.0+40271+b5850c84


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.49% (39th percentile)

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  • Snyk IDSNYK-ROCKY9-RUBYGEMBIGDECIMALDEBUGINFO-19400668
  • published28 Aug 2026
  • disclosed22 Jun 2026

Introduced: 22 Jun 2026

CVE-2026-47240  (opens in a new tab)
CWE-77  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 rubygem-bigdecimal-debuginfo to version 0:4.0.1-34.module+el9.8.0+40271+b5850c84 or higher.
This issue was patched in RLSA-2026:50827.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-bigdecimal-debuginfo package and not the rubygem-bigdecimal-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1