High severity · published Aug 25, 2026
CVE-2026-78379
Consent bypass in python_repl tool via batch kwargs forwarding in Amazon Strands Agents Tools
8.1
CVSS
0.6%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ST
strands-agents-tools · Amazon
before 0.8.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78379
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78379
aws.amazon.com
https://aws.amazon.com/security/security-bulletins/2026-089-aws/
pypi.org
https://pypi.org/project/strands-agents-tools/0.8.5/
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