Arbitrary Command Injection Affecting ruby4.0-doc package, versions <0:4.0.3-35.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.25% (69th percentile)

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  • Snyk IDSNYK-ORACLE10-RUBY40DOC-18006620
  • published17 Jul 2026
  • disclosed9 May 2026

Introduced: 9 May 2026

CVE-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 Oracle:10 ruby4.0-doc to version 0:4.0.3-35.el10_2 or higher.
This issue was patched in ELSA-2026-33540.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby4.0-doc package and not the ruby4.0-doc package as distributed by Oracle. See How to fix? for Oracle:10 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.

References

CVSS Base Scores

version 3.1