CVE-2026-78379

9.2 criticalEPSS 0.6%

Critical (9.2). EPSS 0.6% chance of exploitation in the next 30 days.

Improper neutralization of input used for LLM prompting in the python_repl tool in Amazon Strands Agents Tools before 0.8.5 might allow remote actors to execute arbitrary Python code on the agent's host by bypassing the human consent gate, via a crafted prompt that forwards non_interactive_mode as a keyword argument through the batch tool. To remediate this issue, users should upgrade to version 0.8.5 or later.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.1 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
Published: 2026-08-25
Modified: 2026-08-26
Record from: the NVD, synced 2026-10-19

References

https://aws.amazon.com/security/security-bulletins/2026-089-aws/
https://pypi.org/project/strands-agents-tools/0.8.5/

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