CVE-2026-47242

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Source
https://cve.org/CVERecord?id=CVE-2026-47242
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47242.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47242
Aliases
Downstream
Related
Published
2026-06-22T20:19:41.222Z
Modified
2026-07-08T08:05:18.252315183Z
Severity
  • 5.8 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Net::IMAP: Command Injection via ID command argument
Details

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, when Net::IMAP#id is called with a hash argument, although the ID field value strings are correctly quoted (escaping quoted specials), they were not validated to prohibit CRLF sequences. While Net::IMAP#enable does process its arguments for aliases, it does not validate them as valid atoms (or as a list of valid atoms). The #to_s value is sent verbatim. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. This vulnerability is fixed in 0.6.5 and 0.5.15.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47242.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-77",
        "CWE-93"
    ]
}
References

Affected packages

Git / github.com/ruby/net-imap

Affected ranges

Type
GIT
Repo
https://github.com/ruby/net-imap
Events
Introduced
567518cae5500f7c4776a1fd4e9bbd599e98b9bf
Fixed
357f3b5aee4d2140635b6ba242fbb952491e2d28
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ce20fc8e9974ed87d0848dc411eef490623cdeb9
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.6.0"
        },
        {
            "fixed": "0.6.4.1"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "0.5.15"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.4.0
v0.4.1
v0.4.10
v0.4.11
v0.4.12
v0.4.13
v0.4.14
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.1
v0.5.10
v0.5.11
v0.5.12
v0.5.13
v0.5.14
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.2
v0.6.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47242.json"