CVE-2026-41403
OpenClaw < 2026.3.31 - Access Control Bypass via Proxied Remote Request Misclassification
OpenClaw before 2026.3.31 misclassifies proxied remote requests as loopback connections in the diffs viewer when allowRemoteViewer is disabled, allowing unauthorized access. Attackers can bypass access controls by sending proxied requests that are incorrectly identified as local loopback traffic, circumventing intended remote viewer restrictions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.31 - Access Control Bypass via Proxied Remote Request Misclassification
OpenClaw before 2026.3.31 misclassifies proxied remote requests as loopback connections in the diffs viewer when allowRemoteViewer is disabled, allowing unauthorized access. Attackers can bypass access controls by sending proxied requests that are incorrectly identified as local loopback traffic, circumventing intended remote viewer restrictions.
- Record
CVE-2026-41403- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-807
- Updated
- 2026-11-02
EUVDEUVD-2026-26110
OpenClaw before 2026.3.31 misclassifies proxied remote requests as loopback connections in the diffs viewer when allowRemoteViewer is disabled, allowing unauthorized access. Attackers can bypass access controls by sending proxied requests that are incorrectly identified as local loopback traffic, circumventing intended remote viewer restrictions.
- Record
EUVD-2026-26110- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3xv9-89fm-7h4r
OpenClaw: diffs viewer misclassifies proxied remote requests as loopback when `allowRemoteViewer` is disabled
Summary
diffs viewer misclassifies proxied remote requests as loopback when allowRemoteViewer is disabled
Current Maintainer Triage
- Status: open
- Normalized severity: low
- Assessment: Shipped v2026.3.28 misclassified proxied diff-viewer requests as local loopback in some cases, a real but low-severity access-control flaw.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
30a1690323088fd291abd11643a264a6828a002c— 2026-03-30T14:17:27-06:00
Release Process Note
- The fix is already present in released version
2026.3.31. - This draft looks ready for final maintainer disposition or publication, not additional code-fix work.
Thanks @smaeljaish771 for reporting.
- Record
GHSA-3xv9-89fm-7h4r- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-348, CWE-807
- Updated
- 2026-11-02
NVD
OpenClaw before 2026.3.31 misclassifies proxied remote requests as loopback connections in the diffs viewer when allowRemoteViewer is disabled, allowing unauthorized access. Attackers can bypass access controls by sending proxied requests that are incorrectly identified as local loopback traffic, circumventing intended remote viewer restrictions.
- Record
CVE-2026-41403- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 2.9 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-807
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.31 - Access Control Bypass via Proxied Remote Request Misclassification
OpenClaw before 2026.3.31 misclassifies proxied remote requests as loopback connections in the diffs viewer when allowRemoteViewer is disabled, allowing unauthorized access. Attackers can bypass access controls by sending proxied requests that are incorrectly identified as local loopback traffic, circumventing intended remote viewer restrictions.
- Record
CVE-2026-41403- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-807
- Updated
- 2026-11-11
OSVGHSA-3xv9-89fm-7h4r
OpenClaw: diffs viewer misclassifies proxied remote requests as loopback when `allowRemoteViewer` is disabled
Summary
diffs viewer misclassifies proxied remote requests as loopback when allowRemoteViewer is disabled
Current Maintainer Triage
- Status: open
- Normalized severity: low
- Assessment: Shipped v2026.3.28 misclassified proxied diff-viewer requests as local loopback in some cases, a real but low-severity access-control flaw.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
30a1690323088fd291abd11643a264a6828a002c— 2026-03-30T14:17:27-06:00
Release Process Note
- The fix is already present in released version
2026.3.31. - This draft looks ready for final maintainer disposition or publication, not additional code-fix work.
Thanks @smaeljaish771 for reporting.
- Record
GHSA-3xv9-89fm-7h4r- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-348, CWE-807
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41403 is a medium vulnerability (CVSS 6.3) in Openclaw, published April 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in openclaw 2026.3.31.
References
github.com/openclaw/openclaw/security/advisories/GHSA-3xv9-89fm-7h4r
vulncheck.com/advisories/openclaw-access-control-bypass-via-proxied-remote-request-misclassification
nvd.nist.gov/vuln/detail/CVE-2026-41403