What’s Vulnerable › Vulnerabilities
CVE-2024-6873: Specially crafted request could caused undefined behaviour which may lead to Remote Code Execution.
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-08-01 · updated 2026-06-17
- Weakness: CWE-122
Description
It is possible to crash or redirect the execution flow of the ClickHouse server process from an unauthenticated vector by sending a specially crafted request to the ClickHouse server native interface. This redirection is limited to what is available within a 256-byte range of memory at the time of execution, and no known remote code execution (RCE) code has been produced or exploited. Fixes have been merged to all currently supported version of ClickHouse. If you are maintaining your own forked version of ClickHouse or using an older version and cannot upgrade, the fix for this vulnerability can be found in this commit https://github.com/ClickHouse/ClickHouse/pull/64024 .
Affected products
- ClickHouse: from v23.8.0 before v23.8.15.35-lts; from v24.3.0 before v24.3.4.147-lts; from v24.4.0 before v24.4.2.141-stable; from v24.5.0 before v24.5.1.1763; from v24.6.0 before v24.6.1.4423-stable — fixed in v23.8.15.35-lts, v24.3.4.147-lts, v24.4.2.141-stable, v24.5.1.1763, v24.6.1.4423-stable
How to fix
Upgrade to a fixed version: ClickHouse v23.8.15.35-lts, v24.3.4.147-lts, v24.4.2.141-stable, v24.5.1.1763. Check the vendor advisory for mitigations.
References
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