How severe is CVE-2026-40960?

CVE-2026-40960 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40960 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40960?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40960 have an EU (EUVD) identifier?

Yes. CVE-2026-40960 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23151.

When was CVE-2026-40960 published?

CVE-2026-40960 was published on 2026-04-16 and last updated on 2026-06-17.

CVE-2026-40960

CVE-2026-40960 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. 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-670.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23151
Weakness: CWE-670
Published: 2026-04-16
Last modified: 2026-06-17

Description

Luanti 5 before 5.15.2 sometimes allows unintended access to an insecure environment. If at least one mod is listed as secure.trusted_mods or secure.http_mods, then a crafted mod can intercept the request for the insecure environment or HTTP API, and also receive access to it.

Frequently asked questions

What is CVE-2026-40960?: Luanti 5 before 5.15.2 sometimes allows unintended access to an insecure environment. If at least one mod is listed as secure.trusted_mods or secure.http_mods, then a crafted mod can intercept the request for the insecure environment or HTTP API, and also receive access to it.
How severe is CVE-2026-40960?: CVE-2026-40960 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40960 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40960?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40960 have an EU (EUVD) identifier?: Yes. CVE-2026-40960 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23151.
When was CVE-2026-40960 published?: CVE-2026-40960 was published on 2026-04-16 and last updated on 2026-06-17.

References

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