# CVE-2026-78379: Consent bypass in python_repl tool via batch kwargs forwarding in Amazon Strands Agents Tools

> Remote attackers can execute arbitrary Python code by bypassing consent gates in Amazon Strands Agents Tools via crafted prompts.

- **Severity:** Critical 9.2 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Aug 2026
- **Updated:** 25 Aug 2026

## What is CVE-2026-78379?

CVE-2026-78379 is a critical code injection vulnerability in Amazon strands-agents-tools, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-1427 (Improper Neutralization of Input Used for LLM Prompting)

## Which versions are affected by CVE-2026-78379?


## How do I fix CVE-2026-78379?

No fix has been published for CVE-2026-78379 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-78379 being exploited?

There is no known exploitation of CVE-2026-78379 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-78379 and fix it if it is affected.

What it is: CVE-2026-78379 is a critical code injection vulnerability in Amazon strands-agents-tools, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-78379 in the wild and no public exploit code.

Affected product: Amazon strands-agents-tools. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-78379/ (Markdown: https://insights.sbomify.com/CVE-2026-78379/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-78379
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-78379
- OSV: https://osv.dev/vulnerability/CVE-2026-78379

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-78379/
Summaries are generated and may contain mistakes; the official description above is the record.