A AegiFlow
MEDIUMCVSS 6.3EPSS 0.3%

CVE-2026-114386

CVE-2026-114386 updated by NVD

Published
2026-10-21
Modified
2026-10-24
EPSS percentile
27%
Sources
github-advisory, nvd

Summary

Pydantic AI Harness before 0.59.0 fails to enforce UsageLimits.tool_calls_limit on nested tool calls dispatched from run_code in the CodeMode toolset. Users or prompt-injected content can make the sandboxed program invoke tools via run_nested_call() without check_before_tool_call, exceeding operator limits on costly or side-effecting tools.

Affected packages

EcosystemPackageAffected versionsFixed versions
PyPIpydantic-ai-harness—0.59.0

Remediation: Upgrade to 0.59.0 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.