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Medium, CVSS 5.3amended

OpenClaw: Read-scoped identity-bearing HTTP clients could kill sessions via /sessions/:sessionKey/kill

CVE-2026-41298GHSA-5hff-46vh-rxmw

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (openclaw 2026.4.2), 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
    <= 2026.4.1
    Fixed in
    2026.4.2

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-41298: 0.19% estimated exploitation activity in the next 30 days; percentile 8.40 (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 Before OpenClaw 2026.4.2, POST /sessions/:sessionKey/kill did not enforce write scopes in identity-bearing HTTP modes. A caller limited to read-only operator scopes could still terminate a running subagent session. Impact A read-scoped caller could perform a write-class control-plane mutation and interrupt delegated work. This was an authorization bug on the HTTP scope boundary, not a shared-secret compatibility exception. Affected Packages / Versions - Package: openclaw (npm) - Affected versions: <= 2026.4.1 - Patched versions: = 2026.4.2 - Latest published npm version: 2026.4.1 Fix Commit(s) - 54a0878517167c6e49900498cf77420dadb74beb — enforce session-kill HTTP scopes Release Process Note The fix is present on main and is staged for OpenClaw 2026.4.2. Publish this advisory after the 2026.4.2 npm release is live. Thanks @EaEa0001 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-5hff-46vh-rxmw

  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-5hff-46vh-rxmw

Agent brief

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# Patch Next advisory brief: CVE-2026-41298

Advisory: OpenClaw: Read-scoped identity-bearing HTTP clients could kill sessions via /sessions/:sessionKey/kill
IDs: CVE-2026-41298, GHSA-5hff-46vh-rxmw
Record: https://patchnext.com/advisories/cve-2026-41298 (revision 3, source checked 26 Oct 2026, 12:50 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: openclaw 2026.4.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected <= 2026.4.1; fixed in 2026.4.2

## 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-5hff-46vh-rxmw (OSV record GHSA-5hff-46vh-rxmw lists affected ranges: npm openclaw >=0 <2026.4.2 (fixed))
- Verified: https://github.com/advisories/GHSA-5hff-46vh-rxmw (GitHub-reviewed advisory GHSA-5hff-46vh-rxmw lists affected ranges: npm openclaw >=0 <=2026.4.1)

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