# CVE-2026-57137: PraisonAI AgentLoop onToolCall approval runs after tool execution

> Attackers can bypass tool approval checks in PraisonAI because tools execute before the approval callback runs, allowing unauthorized operations.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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:** Yes
- **Published:** 15 Sep 2026
- **Updated:** 15 Sep 2026
- **Also known as:** GHSA-h2w2-v7j6-xqm4

## What is CVE-2026-57137?

CVE-2026-57137 is a high-severity missing authorization vulnerability in MervinPraison PraisonAI, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

PraisonAI is a multi-agent teams system. From 1.4.0 until 1.7.2, createAgentLoop() in src/praisonai-ts/src/ai/agent-loop.ts passes executable tools to generateText() before invoking the onToolCall approval callback. Because the wrapped AI SDK executes tool handlers during generation, a callback that returns false records tool_rejected only after the denied tool has already produced side effects and populated toolResults. Applications using onToolCall as a human or policy approval boundary can therefore execute rejected file, command, API, or data-modifying operations. This issue is fixed in version 1.7.2.

Weakness: CWE-863 (Incorrect Authorization), CWE-862 (Missing Authorization), CWE-693 (Protection Mechanism Failure)

## Which versions are affected by CVE-2026-57137?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `praisonai` | npm | From 1.4.0 | 1.7.2 |
| `praisonai` | npm | From 1.4.0 | 1.7.2 |

## How do I fix CVE-2026-57137?

Upgrade praisonai to 1.7.2 or later.

## Is CVE-2026-57137 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57137 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57137 and fix it if it is affected.

What it is: CVE-2026-57137 is a high-severity missing authorization vulnerability in MervinPraison PraisonAI, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57137 exists.

Affected packages and fixed versions:
- praisonai (npm): affected from 1.4.0; fixed in 1.7.2
- praisonai (npm): affected from 1.4.0; fixed in 1.7.2

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-2026-57137/ (Markdown: https://insights.sbomify.com/CVE-2026-57137/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57137
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57137
- OSV: https://osv.dev/vulnerability/CVE-2026-57137

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57137/
Summaries are generated and may contain mistakes; the official description above is the record.