CVE-2026-47241

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Source
https://cve.org/CVERecord?id=CVE-2026-47241
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47241.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47241
Aliases
Downstream
Related
Published
2026-06-22T20:11:04.329Z
Modified
2026-07-08T08:05:18.163312630Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Net::IMAP: Denial of Service via incomplete raw argument validation
Details

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will cause the first command to eventually fail, but also prevents it from returning until another command is sent (from another thread). That other command will not return until the connection is closed. 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-2026-47241.json",
    "cwe_ids": [
        "CWE-162",
        "CWE-182",
        "CWE-186"
    ],
    "cna_assigner": "GitHub_M"
}
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-2026-47241.json"