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Python EUVD-2026-12376

| CVE-2026-4231 MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2026-03-16 VulDB
5.5
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
None
User Interaction
None
Scope
X

Lifecycle Timeline

7
CVSS changed
Apr 29, 2026 - 01:11 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Severity Changed
Apr 22, 2026 - 21:37 NVD
HIGH MEDIUM
CVSS changed
Apr 22, 2026 - 21:37 NVD
7.3 (HIGH) 6.9 (MEDIUM)
PoC Detected
Mar 16, 2026 - 14:53 vuln.today
Public exploit code
EUVD ID Assigned
Mar 16, 2026 - 10:00 euvd
EUVD-2026-12376
Analysis Generated
Mar 16, 2026 - 10:00 vuln.today
CVE Published
Mar 16, 2026 - 09:02 nvd
HIGH 7.3

DescriptionCVE.org

A vulnerability was found in vanna-ai vanna up to 2.0.2. Affected by this vulnerability is the function update_sql/run_sql of the file src/vanna/legacy/flask/__init__.py of the component Endpoint. Performing a manipulation results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Server-side request forgery in Vanna AI versions up to 2.0.2 allows unauthenticated remote attackers to manipulate the update_sql and run_sql endpoints in the Flask component. Public exploit code exists for this vulnerability, and no patch is currently available from the vendor despite early notification.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send crafted request to update_sql endpoint
Exploit
Inject malicious URL parameter
Execution
Trigger server-side HTTP request
Impact
Access internal resources or services

Vulnerability AssessmentAI

Exploitation vanna-ai vanna versions up to 2.0.2 with Flask endpoint enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 7.3 indicates high severity with network-based attack vector (AV:N), low complexity (AC:L), and no privileges required (PR:N), making this easily exploitable by remote attackers. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could send a crafted request to the vulnerable Flask endpoint containing a malicious URL in parameters processed by update_sql or run_sql functions, causing the server to make requests to internal services like cloud metadata endpoints (169.254.169.254) or internal databases. Given the low attack complexity and availability of a public proof-of-concept, this attack could be easily automated to scan for and exploit vulnerable instances across the internet. …
Remediation No official patch is currently available as the vendor has not responded to the disclosure. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all systems running vanna library versions ≤2.0.2 and assess internet exposure; immediately restrict network access to affected endpoints if possible. …

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EUVD-2026-12376 vulnerability details – vuln.today

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