Net::IMAP. Performing a manipulation results in command injection.This vulnerability is identified as CVE-2026-47240. The attack is only possible with local access. There is not any exploit available.
You should upgrade the affected component.
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CVE-2026-47240 | ruby net-imap up to 0.5.14 Net::IMAP command injection (GHSA-8p34-64r3-mwg8 / Nessus ID 323667)
A vulnerability identified as critical has been detected in ruby net-imap up to 0.5.14. Affected by this vulnerability is the function Net::IMAP. Performing a manipulation results in command injection. This vulnerability is identified as…
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A vulnerability identified as critical has been detected in ruby net-imap up to 0.5.14. Affected by this vulnerability is the function
This vulnerability is identified as CVE-2026-47240. The attack is only possible with local access. There is not any exploit available.
You should upgrade the affected component.
This vulnerability is identified as CVE-2026-47240. The attack is only possible with local access. There is not any exploit available.
You should upgrade the affected component.
IoC Intelligence (1 Indikatoren)
CVE-2026-47240
CTI Threat Relationship Graph3 Knoten / 2 Relationen
IR-PLAYBOOK-VULN-REMEDIATIONMEDIUM
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title: Detect Exploitation - CVE-2026-47240 | ruby net-imap up to 0.5.14 Net::IMAP command injection (GHSA-8p34-64r3-mwg8 / Nessus ID 323667)
id: b3cbfad0-b4ab-4532-bf7f-1d832ba13a30
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_access
- attack.t1190rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "CVE-2026-47240 | ruby net-imap" ascii wide
condition:
any of them
}INFRASTRUCTURE BLAST RADIUS & EXPOSURE
Live-Vektor: LOCAL
LOCALIZED
Perimeter & Ingress
Geringes Risiko
Lateral Pivot & AD
GEFÄHRDET (80%)
Crown Jewels & DB
Geringes Risiko
Supply Chain Reach
Geringes Risiko
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich CVE-2026-47240 | ruby net-imap up to 0.5.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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