CVE-2026-46718
Description
Apache Calcite's unsafe reflection vulnerability allows arbitrary class loading and code execution, affecting versions 1.5.0 before 1.42.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Apache Calcite's unsafe reflection vulnerability allows arbitrary class loading and code execution, affecting versions 1.5.0 before 1.42.
Vulnerability
Apache Calcite versions from 1.5.0 before 1.42 are affected by an 'Unsafe Reflection' vulnerability. This occurs when externally controlled input is used to select classes or code, allowing a user-controlled model to load arbitrary classes [1].
Exploitation
An attacker can exploit this vulnerability by providing user-controlled input to load arbitrary classes. This requires the attacker to have control over a model within Apache Calcite that can be manipulated to load malicious code [1].
Impact
Successful exploitation of this vulnerability can lead to arbitrary code execution. The scope and privilege level of the compromise depend on how Apache Calcite is integrated and used within the affected system [1].
Mitigation
Users are recommended to upgrade to Apache Calcite version 1.42, which addresses this issue. The fixed version was released on or before June 2, 2026 [1].
AI Insight generated on Jun 2, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
2News mentions
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