CVE-2026-42258
Public on 2026-05-09
Modified on 2026-05-19
Description
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 v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | ruby | Pending Fix | ||
| Amazon Linux 2 - Ruby2.4 Extra | ruby | No Fix Planned | ||
| Amazon Linux 2 - Ruby2.6 Extra | ruby | No Fix Planned | ||
| Amazon Linux 2 - Ruby3.0 Extra | ruby | No Fix Planned | ||
| Amazon Linux 2023 | ruby3.2 | No Fix Planned | ||
| Amazon Linux 2023 | ruby3.4 | Pending Fix | ||
| Amazon Linux 2023 | ruby4.0 | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L |
| NVD | CVSSv3 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |