Vulnerability in praisonaiagents (CVE-2026-40287)
Summary
Vulnerability in praisonaiagents (CVE-2026-40287). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 1.5.140 or later.
Original description
The description as published by the source.
PraisonAI automatically imports ./tools.py from the current working directory when launching certain components. This includes call.py, tool_resolver.py, and CLI tool-loading paths.
A malicious tools.py placed in the process working directory is executed immediately, allowing arbitrary Python code execution in the host environment.
Affected Code
- call.py →
import_tools_from_file() - tool_resolver.py →
_load_local_tools() - tools.py → local tool import flow
PoC
Create tools.py in the directory where PraisonAI is launched:
# tools.py
import os
os.system("echo pwned > /tmp/pwned.txt")
Run any PraisonAI component that loads local tools, for example:
praisonai workflow run safe.yaml
Reproduction Steps
- Create a malicious tools.py in the current working directory.
- Start PraisonAI or invoke a CLI command that loads local tools.
- Verify that
/tmp/pwned.txtor the malicious command output exists.
Impact
An attacker who can place or influence tools.py in the working directory can execute arbitrary code in the PraisonAI process, compromising the host and any connected data.
Reporter: Lakshmikanthan K (letchupkt)
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-40287 has been found in praisonaiagents.
Successful exploitation can lead to full system takeover.
What to do: upgrade praisonaiagents to 1.5.140 or later.
If unsure, ask your IT team or search "praisonaiagents CVE-2026-40287" on the vendor's site.
CVE-2026-40287 (praisonaiagents) — CWE-426
Attack vector: local / unauthenticated / no user interaction
Patched: 1.5.140 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-426) exists in praisonaiagents.
Check the vendor advisory for the affected versions of praisonaiagents.
Severity: ?. Successful exploitation can lead to full system takeover.
Update to 1.5.140.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'praisonaiagents' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'praisonaiagents' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
praisonaiagentsを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade praisonaiagents to 1.5.140ステージング環境で 1.5.140 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com