Medium [CVE-2026-65975] Remote clients can execute server tools with forged arguments due to improper message sanitization.
This medium-severity Red Hat Linux advisory covers CVE-2026-65975 affecting Lightspeed Core.
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Summary
Remote clients can execute server tools with forged arguments due to improper message sanitization. Red Hat rates this moderate (CVSS 6.5).
Weakness: CWE-88.
Affected product named by the advisory: Lightspeed Core.
- < 1.88.0
- < 1.107.1
- < 2.0.0b1
- < 2.5.0
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 1.107.1
- 2.5.0
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Configure Pydantic AI tools to require explicit approval for execution. This prevents remote clients from automatically executing server tools with forged arguments, as approval-gated tools are not affected by this vulnerability. Additionally, restrict network access to the Pydantic AI application to trusted clients only, if feasible in your environment.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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