CVE-2026-59193 | THREATINT

Description

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 Reserved 2026-07-02 | Published 2026-07-10 | Updated 2026-07-10 | Assigner GitHub_M

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

Product status

>= 1.0.0, < 2.0.0

affected

References

github.com/...v/grav/security/advisories/GHSA-2vcx-h8p2-9pg9 exploit

github.com/...v/grav/security/advisories/GHSA-2vcx-h8p2-9pg9

github.com/...ommit/23d6f2adf4ce11889c088ac8557c8314baeef781

github.com/getgrav/grav/releases/tag/2.0.0

cve.org (CVE-2026-59193)

nvd.nist.gov (CVE-2026-59193)

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