CVE-2026-5463: CWE-77 Improper neutralization of special elements leading to command injection in Dan McInerney pymetasploit3
CVE-2026-5463 is a critical command injection vulnerability in the pymetasploit3 library, specifically in the console.run_module_with_output() function. It allows attackers to inject newline characters into module options such as RHOSTS, disrupting the intended command flow and causing the Metasploit console to execute unintended commands. This can lead to arbitrary command execution and manipulation of Metasploit sessions. The vulnerability affects pymetasploit3 through version 1.0.6. No patch or official fix information is currently available.
AI Analysis
Technical Summary
The vulnerability in pymetasploit3 (CVE-2026-5463) arises from improper neutralization of special elements (CWE-77) in the console.run_module_with_output() method. Attackers can inject newline characters into module options like RHOSTS, breaking the command structure and causing the Metasploit console to execute additional, unintended commands. This can result in arbitrary command execution and unauthorized control over Metasploit sessions. The issue affects versions through 1.0.6 and has a CVSS 4.0 score of 9.3, indicating critical severity. No known exploits are reported in the wild, and no patch or remediation details have been provided.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands within the Metasploit console environment without authentication or user interaction, potentially leading to full compromise of Metasploit sessions. This can undermine the integrity and security of penetration testing activities relying on pymetasploit3.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using affected versions of pymetasploit3 in untrusted environments or restrict usage to trusted inputs only. Monitor vendor channels for updates regarding patches or mitigations.
CVE-2026-5463: CWE-77 Improper neutralization of special elements leading to command injection in Dan McInerney pymetasploit3
Description
CVE-2026-5463 is a critical command injection vulnerability in the pymetasploit3 library, specifically in the console.run_module_with_output() function. It allows attackers to inject newline characters into module options such as RHOSTS, disrupting the intended command flow and causing the Metasploit console to execute unintended commands. This can lead to arbitrary command execution and manipulation of Metasploit sessions. The vulnerability affects pymetasploit3 through version 1.0.6. No patch or official fix information is currently available.
CVSS v4.0
Score 9.3critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in pymetasploit3 (CVE-2026-5463) arises from improper neutralization of special elements (CWE-77) in the console.run_module_with_output() method. Attackers can inject newline characters into module options like RHOSTS, breaking the command structure and causing the Metasploit console to execute additional, unintended commands. This can result in arbitrary command execution and unauthorized control over Metasploit sessions. The issue affects versions through 1.0.6 and has a CVSS 4.0 score of 9.3, indicating critical severity. No known exploits are reported in the wild, and no patch or remediation details have been provided.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands within the Metasploit console environment without authentication or user interaction, potentially leading to full compromise of Metasploit sessions. This can undermine the integrity and security of penetration testing activities relying on pymetasploit3.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using affected versions of pymetasploit3 in untrusted environments or restrict usage to trusted inputs only. Monitor vendor channels for updates regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TuranSec
- Date Reserved
- 2026-04-03T04:28:08.555Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69cf4ec6e6bfc5ba1d767352
Added to database: 04/03/2026, 05:23:18 UTC
Last enriched: 04/10/2026, 09:12:43 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 189
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