Vulnerability in Getgrav Grav
CVE-2026-59193
Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, or directory depth. This issue is fixed in version 2.0.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Getgrav Grav — versions >= 1.0.0, < 2.0.0, 2.0.0
Weakness classification (CWE)
References
- github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781 (Patch)
- github.com/getgrav/grav/releases/tag/2.0.0 (Product)
- github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9 (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-59193?
- CVE-2026-59193 is a medium-severity vulnerability in Getgrav Grav, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 4.9/10. Published 2026-07-10.
- How severe is CVE-2026-59193?
- Medium severity. CVSS v3 base score is 4.9 out of 10.