CVE-2024-41434Public exploitNetwork attack vector

Query-worker panic via unchecked expression return type

Published Sep 3, 2024 · Updated Sep 25, 2024

Improper type handling in PingCAP TiDB 8.1.0 allows remote authenticated users to trigger a query-worker panic with crafted SQL. RemoveUnnecessaryFirstRow compares expressions between Agg and GroupBy without checking return types, causing GetDecimal to index beyond its column buffer. A database account able to submit the query is required; PingCAP reports no interruption to other users and disputes the claimed denial of service.

CVSS severity4.3
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper type handling in PingCAP TiDB 8.1.0 allows remote authenticated users to trigger a query-worker panic with crafted SQL. RemoveUnnecessaryFirstRow compares expressions between Agg and GroupBy without checking return types, causing GetDecimal to index beyond its column buffer. A database account able to submit the query is required; PingCAP reports no interruption to other users and disputes the claimed denial of service.

The record

CVE
CVE-2024-41434
Published
Sep 3, 2024
Updated
Sep 25, 2024
Vendor
PingCAP
Product
TiDB
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record 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=8.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PingCAP · TiDBversion=8.1.0

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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