9.8

CVE-2026-42257

net-imap: Command Injection via "raw" arguments to multiple commands

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, several Net::IMAP commands accept a raw string argument that is sent to the server without validation or escaping. If this string is derived from user-controlled input, it may contain contain CRLF sequences, which an attacker can use to inject arbitrary IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Ruby-lang ≫ Net::imap SwPlatformruby Version < 0.4.24
Ruby-lang ≫ Net::imap SwPlatformruby Version >= 0.5.0 < 0.5.14
Ruby-lang ≫ Net::imap SwPlatformruby Version >= 0.6.0 < 0.6.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.43% 0.342
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 5.8 0 0
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

https://github.com/ruby/net-imap/releases/tag/v0.4.24
Release Notes
https://github.com/ruby/net-imap/releases/tag/v0.5.14
Release Notes
https://github.com/ruby/net-imap/releases/tag/v0.6.4
Release Notes
https://github.com/ruby/net-imap/security/advisories/GHSA-hm49-wcqc-g2xg
Vendor Advisory
Mitigation