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Medium, CVSS 6.9amended

OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision

CVE-2026-35635GHSA-rqp8-q22p-5j9q

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (openclaw 2026.3.22), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm openclaw

    Affected
    < 2026.3.22
    Fixed in
    2026.3.22

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N · score source
EPSS
  • CVE-2026-35635: 0.24% estimated exploitation activity in the next 30 days; percentile 15.83 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Summary Synology Chat multi-account configuration could collapse onto a shared webhook path, replacing route ownership and bypassing per-account DM policy separation. Affected Packages / Versions - Package: openclaw (npm) - Affected: < 2026.3.22 - Fixed: = 2026.3.22 - Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87) - Latest published npm version checked: 2026.3.23-2 Fix Commit(s) - 980940aa58f862da4e19372597bbc2a9f268d70b Release Status The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2. Code-Level Confirmation - extensions/synology-chat/src/accounts.ts now distinguishes inherited base webhook paths from explicit per-account paths. - extensions/synology-chat/src/gateway-runtime.ts now fails closed on inherited or duplicate webhook paths and registers routes without replacement. OpenClaw thanks @tdjackey for reporting.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-rqp8-q22p-5j9q

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-rqp8-q22p-5j9q

Agent brief

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# Patch Next advisory brief: CVE-2026-35635

Advisory: OpenClaw Bypasses DM Policy Separation via Synology Chat Webhook Path Collision
IDs: CVE-2026-35635, GHSA-rqp8-q22p-5j9q
Record: https://patchnext.com/advisories/cve-2026-35635 (revision 3, source checked 26 Oct 2026, 12:48 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: openclaw 2026.3.22. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected < 2026.3.22; fixed in 2026.3.22

## Suggested inspection (read-only)
- `npm ls openclaw --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on openclaw.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-rqp8-q22p-5j9q (OSV record GHSA-rqp8-q22p-5j9q lists affected ranges: npm openclaw >=0 <2026.3.22 (fixed))
- Verified: https://github.com/advisories/GHSA-rqp8-q22p-5j9q (GitHub-reviewed advisory GHSA-rqp8-q22p-5j9q lists affected ranges: npm openclaw >=0 <2026.3.22)

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