TI-2024-27622 Aliases CVE-2024-41434 GHSA-66rc-q43x-8675

PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component…

MEDIUM 53CWE-400Published 2024-09-03 · Updated 2024-09-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.

Summary

PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component (*Column).GetDecimal. This allows attackers to cause a Denial of Service (DoS) via a crafted input to the 'RemoveUnnecessaryFirstRow', it will check the expression between 'Agg' and 'GroupBy', but does not check the return type. NOTE: PingCAP disputes this, arguing that reproduction did not cause the security impact of service interruption to other users. They maintain it is a complex query bug in the product but not a DoS.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00414 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pingcap:tidb:8.1.0:-::::::	8.1.0	Vulnerable	pingcap

cpe:2.3:a:pingcap:tidb:8.1.0:-:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·pingcap

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-41434
2026-10-03 Alias added: GHSA-66rc-q43x-8675

References

Exploit 1

https://github.com/pingcap/tidb/issues/53733

Advisory 1

https://gist.github.com/ycybfhb/4aa6809695b9e8a1cd1429e597c17517

TI-2022-02786 Use of Externally-Controlled Format String in pingcap/tidb CVSS 3.1CRITICAL 9.8
TI-2024-23494 PingCAP TiDB v7.5.1 was discovered to contain a NULL pointer dereference via the component SortedRowContainer. CVSS 3.1HIGH 7.5
TI-2024-27621 PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component… CVSS 3.1CRITICAL 9.8
TI-2022-13056 TiDB authentication bypass vulnerability CVSS 3.1HIGH 7.8
TI-2022-15734 PingCAP TiDB v6.1.0 was discovered to contain a NULL pointer dereference. CVSS 3.1HIGH 7.5
TI-2024-22319 PingCAP TiDB v7.5.1 was discovered to contain a buffer overflow vulnerability, which… CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences