What is CVE-2026-78379?

CVE-2026-78379 is a high-severity vulnerability in Amazon Strands-Agents-Tools, classified under CWE-1427. CVSS score: 8.1/10. Published 2026-08-25.

How severe is CVE-2026-78379?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Amazon Strands-Agents-Tools

CVE-2026-78379

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.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amazon Strands-agents-tools

Weakness classification (CWE)

CWE-1427

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)

Frequently asked questions

What is CVE-2026-78379?: CVE-2026-78379 is a high-severity vulnerability in Amazon Strands-Agents-Tools, classified under CWE-1427. CVSS score: 8.1/10. Published 2026-08-25.
How severe is CVE-2026-78379?: High severity. CVSS v3 base score is 8.1 out of 10.