# CVE-2026-108263: Astron Agent: Unsandboxed code-node leads to cross-tenant RCE

> Authenticated low-privilege users can execute arbitrary code as root via unsandboxed code nodes, leading to cross-tenant data access and service disruption.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-mh3w-4q3f-2fg5

## What is CVE-2026-108263?

CVE-2026-108263 is a critical code injection vulnerability in iflytek astron-agent, published on 9 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Astron Agent is an agentic workflow platform for building and running AI agents. Prior to 1.1.2, the default workflow code-node path through /console-api/workflow/code/run and /workflow/v1/run selects LocalExecutor in core/workflow/engine/nodes/code/code_node.py when CODE_EXEC_TYPE is not explicitly changed. LocalExecutor supplies complete Python builtins to dynamic code execution without the documented sandbox restrictions. An authenticated low-privilege tenant can execute code as root in the core-workflow container and use shared service and database credentials to bypass application-level tenant checks, read or modify other tenants' data, and disrupt shared services. This issue is fixed in version 1.1.2.

Weakness: CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code), CWE-653 (Improper Isolation or Compartmentalization), CWE-863 (Incorrect Authorization), CWE-306 (Missing Authentication for Critical Functionality), CWE-1392 (Use of Default Credentials)

## Which versions are affected by CVE-2026-108263?


## How do I fix CVE-2026-108263?

No fix has been published for CVE-2026-108263 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-108263 being exploited?

There is no known exploitation of CVE-2026-108263 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-108263 and fix it if it is affected.

What it is: CVE-2026-108263 is a critical code injection vulnerability in iflytek astron-agent, published on 9 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-108263 in the wild and no public exploit code.

Affected product: iflytek astron-agent. 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-2026-108263/ (Markdown: https://insights.sbomify.com/CVE-2026-108263/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-108263
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108263
- OSV: https://osv.dev/vulnerability/CVE-2026-108263

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-108263/
Summaries are generated and may contain mistakes; the official description above is the record.