CVE-2026-4229Public exploitNetwork attack vector

Unauthenticated training-data deletion via SQL interpolation

Published Mar 16, 2026 · Updated Mar 16, 2026

SQL injection in Vanna 2.0.0 through 2.0.2 allows remote attackers to delete BigQuery training data via a crafted HTTP request. The BigQuery_VectorStore remove_training_data method inserts the request body's id value into a DELETE statement with an f-string and no parameterization. The legacy Flask API passes that value from POST /api/v0/remove_training_data to the method, and default NoAuth permits unauthenticated mass deletion of the training-data table.

CVSS severity7.3
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Vanna 2.0.0 through 2.0.2 allows remote attackers to delete BigQuery training data via a crafted HTTP request. The BigQuery_VectorStore remove_training_data method inserts the request body's id value into a DELETE statement with an f-string and no parameterization. The legacy Flask API passes that value from POST /api/v0/remove_training_data to the method, and default NoAuth permits unauthenticated mass deletion of the training-data table.

The record

CVE
CVE-2026-4229
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
Vanna AI
Product
Vanna
Classifications
CWE-74, CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.0
  2. Affected versionversion=2.0.1
  3. Affected versionversion=2.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vanna AI · Vannaversion=2.0.0; version=2.0.1; version=2.0.2

Published CVSS scores

5.5VulDBCVSS: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
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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