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Medium, CVSS 6.9amended

OpenClaw has SSRF guard bypass via IPv6 transition over ISATAP

GHSA-8cp7-rp8r-mg77

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (openclaw 2026.2.19), 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
    >= 2026.1.20, < 2026.2.19
    Fixed in
    2026.2.19

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:N/SI:N/SA:N · score source
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Summary OpenClaw's SSRF hostname/IP guard did not detect ISATAP embedded IPv4 addresses (...:5efe:w.x.y.z). A crafted URL containing an ISATAP IPv6 literal could embed a private IPv4 target (for example loopback) and bypass private-address filtering in URL-fetching paths. Severity Assessment Rated medium: the bug weakens SSRF protections in URL fetch flows, but impact depends on reaching a URL-fetching path with attacker-controlled input and is generally constrained to internal network access attempts. Affected Packages / Versions - Package: openclaw (npm) - Affected: =2026.1.20 <=2026.2.17 - Latest published at patch time: 2026.2.17 - Patched release: 2026.2.19 Security Policy Context Per SECURITY.md, OpenClaw's web/gateway surface is intended for local use by default, public internet exposure is out-of-scope, and prompt-injection reports are out-of-scope for bounty handling. This advisory tracks a core SSRF-guard bypass in fetch protections. Impact This can permit SSRF-style access…

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

    Amended from ghsa record GHSA-8cp7-rp8r-mg77

  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-8cp7-rp8r-mg77

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-8cp7-rp8r-mg77

Advisory: OpenClaw has SSRF guard bypass via IPv6 transition over ISATAP
IDs: GHSA-8cp7-rp8r-mg77
Record: https://patchnext.com/advisories/ghsa-8cp7-rp8r-mg77 (revision 3, source checked 26 Oct 2026, 12:42 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 2026.2.19. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm openclaw: affected >= 2026.1.20, < 2026.2.19; fixed in 2026.2.19

## 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-8cp7-rp8r-mg77 (OSV record GHSA-8cp7-rp8r-mg77 lists affected ranges: npm openclaw >=2026.1.20 <2026.2.19 (fixed))
- Verified: https://github.com/advisories/GHSA-8cp7-rp8r-mg77 (GitHub-reviewed advisory GHSA-8cp7-rp8r-mg77 lists affected ranges: npm openclaw >=2026.1.20 <2026.2.19)

Commands are suggestions: review each one before running it.

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