How severe is CVE-2026-41391?

CVE-2026-41391 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-41391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41391?

CVE-2026-41391 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41391?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-41391 have an EU (EUVD) identifier?

Yes. CVE-2026-41391 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26099.

When was CVE-2026-41391 published?

CVE-2026-41391 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-41391

CVE-2026-41391 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-184.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 5.8
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26099
Weakness: CWE-184
Affected product: Openclaw
Published: 2026-04-28
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-41391?: 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.
How severe is CVE-2026-41391?: CVE-2026-41391 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-41391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41391?: CVE-2026-41391 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41391 have an EU (EUVD) identifier?: Yes. CVE-2026-41391 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26099.
When was CVE-2026-41391 published?: CVE-2026-41391 was published on 2026-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

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