CVE-2024-41434: PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component (*Column).GetDecimal

Routine

MEDIUM 4.3DOWNGRADE

CVE-2024-41434 is a medium-severity flaw (CVSS 4.3) affecting tidb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 maint

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-400
Published	2024-09-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pingcap

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-09-03 20:15 UTCPublished CVE record published
2026-06-17 07:47 UTCUpdated Record last modified

pingcap tidb DOWNGRADE

Affected: 8.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.1.0

1. Check installed version

apt-cache policy tidb || rpm -q tidb || tidb --version

2. No fixed release: DOWNGRADE to a release before 8.1.0 (Debian / Ubuntu)

apt-cache madison tidb sudo apt install tidb=<VERSION_BEFORE_8.1.0> sudo apt-mark hold tidb

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tidb sudo dnf downgrade tidb-<VERSION_BEFORE_8.1.0> sudo dnf versionlock add tidb

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-41434?

tidb: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-41434 being exploited?

CVE-2024-41434 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-41434 affect?

CVE-2024-41434 affects tidb. Severity is medium (CVSS 4.3). 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 expre

How urgent is CVE-2024-41434?

Priority 29/100. Public exploit reference

Related CVEs

CVE-2024-41433 CRITICAL 9.8 DOWNGRADE PingCAP TiDB v8.1.0 was discovered to contain a buffer overflow via the component expression.ExplainExpression
CVE-2024-35618 HIGH 7.5 DOWNGRADE PingCAP TiDB v7.5.1 was discovered to contain a NULL pointer dereference via the component SortedRowContainer.
CVE-2024-33809 MEDIUM 6.5 DOWNGRADE PingCAP TiDB v7.5.1 was discovered to contain a buffer overflow vulnerability, which could lead to database cr

References

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