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High, CVSS 7.3amended

OpenClaw: Lower-trust background runtime output is injected into trusted System: events, and local async exec completion misses the intended exec-event downgrade

GHSA-gfmx-pph7-g46x

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (openclaw 2026.4.8), 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
    <= 2026.4.2
    Fixed in
    2026.4.8

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
7.3 · CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N · score source
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Impact Lower-trust background runtime output is injected into trusted System: events, and local async exec completion misses the intended exec-event downgrade. Lower-trust runtime/background output could be promoted into trusted System events, allowing prompt-injection into later agent turns. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary. Affected Packages / Versions - Package: openclaw (npm) - Affected versions: <= 2026.4.2 - Patched versions: 2026.4.8 Fix The issue was fixed on main and is available in the patched npm version listed above. The verified fixed tree is commit d7c3210cd6f5fdfdc1beff4c9541673e814354d5. Verification The fix was re-checked against main before publication, including targeted regression tests for the affected security boundary. Credits 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-gfmx-pph7-g46x

  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-gfmx-pph7-g46x

Agent brief

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# Patch Next advisory brief: GHSA-gfmx-pph7-g46x

Advisory: OpenClaw: Lower-trust background runtime output is injected into trusted `System:` events, and local async exec completion misses the intended `exec-event` downgrade
IDs: GHSA-gfmx-pph7-g46x
Record: https://patchnext.com/advisories/ghsa-gfmx-pph7-g46x (revision 3, source checked 26 Oct 2026, 12:47 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: openclaw 2026.4.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected <= 2026.4.2; fixed in 2026.4.8

## 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-gfmx-pph7-g46x (OSV record GHSA-gfmx-pph7-g46x lists affected ranges: npm openclaw >=0 <2026.4.8 (fixed))
- Verified: https://github.com/advisories/GHSA-gfmx-pph7-g46x (GitHub-reviewed advisory GHSA-gfmx-pph7-g46x lists affected ranges: npm openclaw >=0 <=2026.4.2)

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