CVE-2026-5321

| EUVD-2026-18122 MEDIUM
2026-04-02 VulDB GHSA-fp27-q2f5-phx3
5.3
CVSS 4.0
Share

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
PoC Detected
Apr 03, 2026 - 16:10 vuln.today
Public exploit code
Analysis Generated
Apr 02, 2026 - 05:15 vuln.today
EUVD ID Assigned
Apr 02, 2026 - 05:15 euvd
EUVD-2026-18122
CVE Published
Apr 02, 2026 - 04:45 nvd
MEDIUM 5.3

Tags

Cors Misconfiguration Information Disclosure Python

Description

A flaw has been found in vanna-ai vanna up to 2.0.2. Affected by this issue is some unknown functionality of the component FastAPI/Flask Server. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Analysis

Cross-Origin Resource Sharing (CORS) misconfiguration in vanna-ai vanna up to version 2.0.2 allows authenticated remote attackers to establish permissive cross-domain policies with untrusted domains, leading to information disclosure. The vulnerability affects the FastAPI/Flask Server component and has publicly available exploit code; however, the vendor has not responded to early disclosure attempts. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: +20

Share

CVE-2026-5321 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy