CVE-2022-3023

Arbitrary file reads via crafted database names

Published Nov 4, 2022 · Updated May 2, 2025

Data source name injection in the TiDB importer through 6.1.2 and 6.2.0 through 6.4.0-alpha1 allows local users to read arbitrary files. The createDB function in cmd/importer/db.go interpolates cfg.Name into a MySQL DSN, allowing DSN syntax in an untrusted name to alter driver behavior instead of remaining a database identifier. Exploitation requires a high-privileged user to run the importer with an attacker-controlled database name, and file access uses the importer's host permissions.

CVSS severity9.8
Critical
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data source name injection in the TiDB importer through 6.1.2 and 6.2.0 through 6.4.0-alpha1 allows local users to read arbitrary files. The createDB function in cmd/importer/db.go interpolates cfg.Name into a MySQL DSN, allowing DSN syntax in an untrusted name to alter driver behavior instead of remaining a database identifier. Exploitation requires a high-privileged user to run the importer with an attacker-controlled database name, and file access uses the importer's host permissions.

The record

CVE
CVE-2022-3023
Published
Nov 4, 2022
Updated
May 2, 2025
Vendor
PingCAP
Product
TiDB
Classifications
CWE-134, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 4, 2022CVE publishedPublication date reported by the CVE source.
  2. May 2, 2025Record 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=unspecified <6.4.0, 6.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

PingCAP · TiDBversion=unspecified <6.4.0, 6.1.3

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.2huntr.devCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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