Overview
The vulnerability, CVE-2025-40930, is a significant security flaw affecting the JSON::SIMD Perl module, specifically versions before 1.07. This vulnerability has the potential to lead to system compromises, data leaks, and enable denial-of-service attacks. The severity of this vulnerability underlines its potential to disrupt system operations and compromise sensitive data.
Vulnerability Summary
CVE ID: CVE-2025-40930
Severity: High (7.5 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
Share secrets securely
Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.
Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
- • Private Spaces for organizations and teams
- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
JSON::SIMD for Perl | Before 1.07
How the Exploit Works
This vulnerability is a buffer overflow issue. It stems from an improper validation of user-supplied input when parsing JSON data. Attackers can craft malicious JSON data that triggers an integer overflow, causing a segmentation fault. This can lead to a denial-of-service condition or potentially allow arbitrary code execution.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. This could be a sample HTTP request, where the attacker sends a POST request with a malicious JSON payload:
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "{'$gt': ''}" }In this example, the malicious payload triggers an integer overflow, causing a segmentation fault in the JSON::SIMD Perl module, and potentially leading to arbitrary code execution or denial-of-service.
Mitigation Guidance
Users are advised to apply the vendor patch to fix this vulnerability. In the absence of a patch, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) may help to mitigate the risk temporarily.