Medium

OpenClaw: Trailing-dot localhost CDP hosts could bypass remote loopback protections

  • Disclosed: 07.04.2026
  • Updated: 11.10.2026 10:22

Summary

Before OpenClaw 2026.4.2, remote CDP discovery could return a trailing-dot localhost host such as localhost. and bypass OpenClaw's loopback-host normalization. That let a non-loopback remote CDP profile pivot the follow-up connection back onto localhost.

Impact

A hostile discovery response could retarget authenticated browser control toward a localhost-resolving endpoint on the OpenClaw host. This weakened the existing remote-CDP loopback protection and could expose localhost-backed browser state.

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)

  • 9c22d636697336a6b22b0ae24798d8b8325d7828 — normalize localhost absolute-form CDP hosts before loopback checks

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 @smaeljaish771 for reporting.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package openclaw < 2026.4.2 2026.4.2

References

CVSS score 5.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE)
CWE-20, CWE-639
Platform
npm
Package
openclaw
Disclosed
07.04.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-fh32-73r9-rgh5 - CC BY 4.0

Vulnerability history: openclaw

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (588) in the archive
Total entries
588
First → latest
02.2026 07.2026
Without a fix
9
Exploited in attacks
0

Severity breakdown

  • Critical 20
  • High 215
  • Medium 299
  • Low 54

Disclosures per year

  1. 2026: 588
Severity:
  1. High · 8.8 CVE-2026-53811 < 2026.5.7 2026.5.7
  2. High · 8.8 CVE-2026-53806 < 2026.5.12 2026.5.12
  3. High · 7.8 CVE-2026-53813 < 2026.4.25 2026.4.25
  4. High · 7.5 CVE-2026-53834 < 2026.4.27 2026.4.27
  5. Critical CVE-2026-34507 < 2026.4.29 2026.4.29
  6. High CVE-2026-53823 < 2026.5.3 2026.5.3
  7. High · 8.4 CVE-2026-53814 < 2026.5.20 2026.5.20
  8. High · 6.5 CVE-2026-53815 < 2026.5.19 2026.5.19
  9. High · 8.1 CVE-2026-53849 < 2026.5.7 2026.5.7
  10. High · 8.1 CVE-2026-53857 < 2026.5.3 2026.5.3
  11. High · 8.1 CVE-2026-53866 < 2026.5.12 2026.5.12
  12. High · 8.1 CVE-2026-53864 < 2026.5.26 2026.5.26
  13. Critical · 9.8 CVE-2026-44109 < 2026.4.15 2026.4.15
  14. Critical · 8.1 CVE-2026-43585 < 2026.4.15 2026.4.15
  15. High · 8.8 CVE-2026-43530 >= 2026.2.23, < 2026.4.12 2026.4.12
  16. High · 8.8 CVE-2026-42434 >= 2026.4.5, < 2026.4.10 2026.4.10
  17. High · 7.5 CVE-2026-42437 >= 2026.4.9, < 2026.4.10 2026.4.10
  18. OpenClaw: Trailing-dot localhost CDP hosts could bypass remote loopback protections this entry
    Medium · 5.8 CVE-2026-41372 < 2026.4.2 2026.4.2
  19. High CVE-2026-41393 < 2026.3.31 2026.3.31
  20. Critical · 8.2 CVE-2026-41296 < 2026.3.31 2026.3.31
  21. High · 8.8 CVE-2026-41352 < 2026.3.31 2026.3.31
  22. High · 7.8 CVE-2026-41396 < 2026.3.31 2026.3.31
  23. High · 8.6 CVE-2026-35641 < 2026.3.24 2026.3.24
Show more (20) Showing 100 of 236

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