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.
Published: 2026-05-09
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-75xq-5h9v-w6px net-imap vulnerable to command Injection via unvalidated Symbol inputs
History

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 10 May 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Ruby-lang
Ruby-lang net::imap
Vendors & Products Ruby-lang
Ruby-lang net::imap

Sat, 09 May 2026 20:00:00 +0000

Type Values Removed Values Added
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.
Title net-imap: Command Injection via unvalidated Symbol inputs
Weaknesses CWE-77
CWE-93
References
Metrics cvssV4_0

{'score': 5.8, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Ruby-lang Net::imap
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-11T14:57:24.039Z

Reserved: 2026-04-26T11:53:27.704Z

Link: CVE-2026-42258

cve-icon Vulnrichment

Updated: 2026-05-11T14:57:20.913Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-09T20:16:28.623

Modified: 2026-05-13T15:39:39.350

Link: CVE-2026-42258

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-10T20:00:05Z

Weaknesses