How severe is CVE-2026-44012?

CVE-2026-44012 has a CVSS 4.0 base score of 7.1, rated high severity.

Is CVE-2026-44012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44012?

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-2026-44012 have an EU (EUVD) identifier?

Yes. CVE-2026-44012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29836.

When was CVE-2026-44012 published?

CVE-2026-44012 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-44012

CVE-2026-44012 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. 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-862.

Key facts

Severity: High (CVSS 4.0 base score 7.1)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29836
Weakness: CWE-862
Published: 2026-05-12
Last modified: 2026-06-17

Description

Craft CMS is a content management system (CMS). From 5.0.0-RC1 to before 5.9.18, AssetsController::actionShowInFolder() fetches an asset by ID and returns its filename and complete folder hierarchy (including volume handle, volume UID, folder names, folder UIDs, and folder URI paths) without checking whether the requesting user has viewAssets or viewPeerAssets permission on the asset’s volume. Any authenticated CP user — even one with zero volume permissions — can enumerate asset filenames and the full folder structure of any volume by supplying arbitrary asset IDs. This vulnerability is fixed in 5.9.18.

Frequently asked questions

What is CVE-2026-44012?: Craft CMS is a content management system (CMS). From 5.0.0-RC1 to before 5.9.18, AssetsController::actionShowInFolder() fetches an asset by ID and returns its filename and complete folder hierarchy (including volume handle, volume UID, folder names, folder UIDs, and folder URI paths) without checking whether the requesting user has viewAssets or viewPeerAssets permission on the asset’s volume. Any authenticated CP user — even one with zero volume permissions — can enumerate asset filenames and the full folder structure of any volume by supplying arbitrary asset IDs. This vulnerability is fixed in 5.9.18.
How severe is CVE-2026-44012?: CVE-2026-44012 has a CVSS 4.0 base score of 7.1, rated high severity.
Is CVE-2026-44012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-44012?: 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-2026-44012 have an EU (EUVD) identifier?: Yes. CVE-2026-44012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29836.
When was CVE-2026-44012 published?: CVE-2026-44012 was published on 2026-05-12 and last updated on 2026-06-17.

References

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