How severe is CVE-2026-1770?

CVE-2026-1770 has a CVSS 4.0 base score of 4.5, rated medium severity.

Is CVE-2026-1770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-1770?

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

Does CVE-2026-1770 have an EU (EUVD) identifier?

Yes. CVE-2026-1770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5112.

When was CVE-2026-1770 published?

CVE-2026-1770 was published on 2026-02-02 and last updated on 2026-06-17.

CVE-2026-1770

CVE-2026-1770 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.5. 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-913.

Key facts

Severity: Medium (CVSS 4.0 base score 4.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5112
Weakness: CWE-913
Published: 2026-02-02
Last modified: 2026-06-17

Description

Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticated developers to execute OS commands via Groovy Sandbox Bypass. By inserting malicious Groovy elements, an attacker may bypass sandbox restrictions and obtain RCE (Remote Code Execution).

Frequently asked questions

What is CVE-2026-1770?: Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticated developers to execute OS commands via Groovy Sandbox Bypass. By inserting malicious Groovy elements, an attacker may bypass sandbox restrictions and obtain RCE (Remote Code Execution).
How severe is CVE-2026-1770?: CVE-2026-1770 has a CVSS 4.0 base score of 4.5, rated medium severity.
Is CVE-2026-1770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-1770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1770 have an EU (EUVD) identifier?: Yes. CVE-2026-1770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5112.
When was CVE-2026-1770 published?: CVE-2026-1770 was published on 2026-02-02 and last updated on 2026-06-17.

References

https://docs.craftercms.org/current/security/advisory.html#cv-2026020201

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