Improper Authorization Vulnerability in vanna-ai vanna by Vanna
CVE-2026-6977

6.9MEDIUM

Key Information:

Vendor

Vanna-ai

Status
Vanna
Vendor
CVE Published:
25 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6977?

A security flaw has been identified in vanna-ai vanna versions up to 2.0.2, specifically within an unknown function of the Legacy Flask API. This vulnerability enables attackers to exploit improper authorization mechanisms, potentially granting unauthorized access to sensitive API endpoints. The attack can be conducted remotely, making it critical for users to remain vigilant. Despite early notification to the vendor regarding this issue, there has been no response, increasing the urgency for users to assess their risk and implement necessary security measures.

Affected Version(s)

vanna 2.0.0

vanna 2.0.1

vanna 2.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6977 - Proof of Concept

References

https://vuldb.com/vuln/359520
vdb-entry
https://vuldb.com/vuln/359520/cti
signaturepermissions-required
https://vuldb.com/submit/795331
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

York Shen (VulDB User)
VulDB CNA Team
.