How severe is CVE-2026-48124?

CVE-2026-48124 has a CVSS 4.0 base score of 8.5, rated high severity.

Is CVE-2026-48124 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48124?

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-2026-48124 have an EU (EUVD) identifier?

Yes. CVE-2026-48124 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37002.

When was CVE-2026-48124 published?

CVE-2026-48124 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-48124

CVE-2026-48124 is a high-severity vulnerability with a CVSS 4.0 base score of 8.5. 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-94.

Key facts

Severity: High (CVSS 4.0 base score 8.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37002
Weakness: CWE-94
Published: 2026-06-15
Last modified: 2026-06-17

Description

Cursor is a code editor built for programming with AI. In versions prior to 3.0.0, the Cursor Desktop could execute workspace-defined Claude hook commands from .claude/settings.local.json without dedicated user approval. A malicious workspace or agent-created file could configure hooks that run local commands in the user's context when an agent turn ends. This could allow sandbox escape, persistence across turns, local data access, or follow-on compromise. This issue has been fixed in version 3.0.0.

Frequently asked questions

What is CVE-2026-48124?: Cursor is a code editor built for programming with AI. In versions prior to 3.0.0, the Cursor Desktop could execute workspace-defined Claude hook commands from .claude/settings.local.json without dedicated user approval. A malicious workspace or agent-created file could configure hooks that run local commands in the user's context when an agent turn ends. This could allow sandbox escape, persistence across turns, local data access, or follow-on compromise. This issue has been fixed in version 3.0.0.
How severe is CVE-2026-48124?: CVE-2026-48124 has a CVSS 4.0 base score of 8.5, rated high severity.
Is CVE-2026-48124 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48124?: 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-2026-48124 have an EU (EUVD) identifier?: Yes. CVE-2026-48124 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37002.
When was CVE-2026-48124 published?: CVE-2026-48124 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://github.com/cursor/cursor/security/advisories/GHSA-pc9j-3qc2-95wv

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