How severe is CVE-2026-40045?

CVE-2026-40045 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-40045 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40045?

CVE-2026-40045 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40045?

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

Does CVE-2026-40045 have an EU (EUVD) identifier?

Yes. CVE-2026-40045 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23995.

When was CVE-2026-40045 published?

CVE-2026-40045 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2026-40045

CVE-2026-40045 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 5.7. 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-319.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v4: 5.9
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23995
Weakness: CWE-319
Affected product: Openclaw
Published: 2026-04-21
Last modified: 2026-06-17

Description

OpenClaw before 2026.4.2 accepts non-loopback cleartext ws:// gateway endpoints and transmits stored gateway credentials over unencrypted connections. Attackers can forge discovery results or craft setup codes to redirect clients to malicious endpoints, disclosing plaintext gateway credentials.

Frequently asked questions

What is CVE-2026-40045?: OpenClaw before 2026.4.2 accepts non-loopback cleartext ws:// gateway endpoints and transmits stored gateway credentials over unencrypted connections. Attackers can forge discovery results or craft setup codes to redirect clients to malicious endpoints, disclosing plaintext gateway credentials.
How severe is CVE-2026-40045?: CVE-2026-40045 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-40045 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40045?: CVE-2026-40045 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40045?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40045 have an EU (EUVD) identifier?: Yes. CVE-2026-40045 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23995.
When was CVE-2026-40045 published?: CVE-2026-40045 was published on 2026-04-21 and last updated on 2026-06-17.

References

Affected products (1)

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

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