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CVE-2026-41391

OpenClaw < 2026.3.31 - Environment Variable Bypass in Package Index URL Handling

5.8 MediumFix available

OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
High
Availability
None

Exploit likelihood

0.12%Up 0.1 points since Apr 29, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.8

OpenClaw < 2026.3.31 - Environment Variable Bypass in Package Index URL Handling

OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.

Record
CVE-2026-41391
CVSS 4.0
5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-184
Updated
2026-11-02
EUVDEUVD-2026-26099 5.8

OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.

Record
EUVD-2026-26099
CVSS 4.0
5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-7ggg-pvrf-458v 7.3

OpenClaw: PIP_INDEX_URL and UV_INDEX_URL bypass host exec env sanitization and redirect Python package-index traffic

Summary

PIP_INDEX_URL and UV_INDEX_URL bypass host exec env sanitization and redirect Python package-index traffic

Current Maintainer Triage

  • Status: narrow
  • Normalized severity: high
  • Assessment: v2026.3.28 still allows Python package-index env redirection through host exec, but scope should stay limited to approved or allowlisted package-management exec paths, not arbitrary remote execution.

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)

  • 7ae1bb0c7799fd0cbd2d4de7b0f5b8039837ab8d — 2026-03-31T09:53:32+09:00

OpenClaw thanks @nexrin for reporting.

Record
GHSA-7ggg-pvrf-458v
CVSS 4.0
7.3 HighCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-184, CWE-807
Updated
2026-11-02
NVD 5.8

OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.

Record
CVE-2026-41391
CVSS 4.0
5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/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
5.3 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-184
Updated
2026-11-02
OSV 5.8

OpenClaw < 2026.3.31 - Environment Variable Bypass in Package Index URL Handling

OpenClaw before 2026.3.31 fails to properly sanitize PIP_INDEX_URL and UV_INDEX_URL environment variables in host execution contexts, allowing attackers to redirect Python package-index traffic. Attackers can exploit this bypass to intercept or manipulate package management operations by injecting malicious index URLs through unsanitized environment variables.

Record
CVE-2026-41391
CVSS 4.0
5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-184
Updated
2026-11-02
OSVGHSA-7ggg-pvrf-458v 7.3

OpenClaw: PIP_INDEX_URL and UV_INDEX_URL bypass host exec env sanitization and redirect Python package-index traffic

Summary

PIP_INDEX_URL and UV_INDEX_URL bypass host exec env sanitization and redirect Python package-index traffic

Current Maintainer Triage

  • Status: narrow
  • Normalized severity: high
  • Assessment: v2026.3.28 still allows Python package-index env redirection through host exec, but scope should stay limited to approved or allowlisted package-management exec paths, not arbitrary remote execution.

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)

  • 7ae1bb0c7799fd0cbd2d4de7b0f5b8039837ab8d — 2026-03-31T09:53:32+09:00

OpenClaw thanks @nexrin for reporting.

Record
GHSA-7ggg-pvrf-458v
CVSS 4.0
7.3 HighCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness
CWE-184, CWE-807
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
through 2026.3.28
2026.3.31
openclaw
npm
before 2026.3.31
2026.3.31

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-41391 is a medium vulnerability (CVSS 5.8) in Openclaw, published April 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. Fixed in openclaw 2026.3.31.

References

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