# CVE-2026-57144: PraisonAI SandlockSandbox falls back to unrestricted subprocess execution when Landlock is unavailable


- **Severity:** High 8.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 23 Oct 2026
- **Updated:** 29 Oct 2026
- **Also known as:** GHSA-6jcq-6546-qrrw, PYSEC-2026-3504

## What is CVE-2026-57144?

CVE-2026-57144 is a high-severity vulnerability in MervinPraison PraisonAI, published on 23 Oct 2026. 

### Official description

PraisonAI is a multi-agent teams system. From version 4.5.110 to before version 4.6.61, praisonai.sandbox.SandlockSandbox is documented and implemented as the kernel-enforced sandbox backend for untrusted code. Its SandboxConfig.native() path lets callers configure allowed filesystem paths and network=False. On systems where the optional sandlock module imports but reports that Landlock is unavailable, SandlockSandbox.execute() and run_command() do not fail closed. They silently fall back to SubprocessSandbox(self.config). That fallback keeps the same high-level native policy object but does not enforce the native filesystem or network boundary during code execution. A sandboxed payload can read files outside the configured allowed path and open network connections despite network=False. This issue has been patched in version 4.6.61.

Weakness: CWE-693 (Protection Mechanism Failure), CWE-668 (Exposure of Resource to Wrong Sphere), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-57144?

3 open source packages ship an affected version, including praisonai.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `praisonai` | PyPI | From 4.5.110 | 4.6.61 |
| `praisonai` | PyPI | From 4.5.110 | 4.6.61 |
| `praisonai` | PyPI | From 4.5.110 | 4.6.61 |

## How do I fix CVE-2026-57144?

Upgrade praisonai to 4.6.61 or later.

## Is CVE-2026-57144 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57144 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57144 and fix it if it is affected.

What it is: CVE-2026-57144 is a high-severity vulnerability in MervinPraison PraisonAI, published on 23 Oct 2026. 
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57144 exists.

Affected packages and fixed versions:
- praisonai (PyPI): affected from 4.5.110; fixed in 4.6.61
- praisonai (PyPI): affected from 4.5.110; fixed in 4.6.61
- praisonai (PyPI): affected from 4.5.110; fixed in 4.6.61

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-2026-57144/ (Markdown: https://insights.sbomify.com/CVE-2026-57144/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57144
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57144
- OSV: https://osv.dev/vulnerability/CVE-2026-57144

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57144/
Summaries are generated and may contain mistakes; the official description above is the record.