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CVE Vulnerability Details :
CVE-2026-59193
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-10 Jul, 2026 | 16:35
Updated At-10 Jul, 2026 | 19:04
Rejected At-
▼CVE Numbering Authority (CNA)
Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip()

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.

Affected Products
Vendor
getgrav
Product
grav
Versions
Affected
  • >= 1.0.0, < 2.0.0
Problem Types
TypeCWE IDDescription
CWECWE-409CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
Type: CWE
CWE ID: CWE-409
Description: CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9
x_refsource_CONFIRM
https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781
x_refsource_MISC
https://github.com/getgrav/grav/releases/tag/2.0.0
x_refsource_MISC
Hyperlink: https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781
Resource:
x_refsource_MISC
Hyperlink: https://github.com/getgrav/grav/releases/tag/2.0.0
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9
exploit
Hyperlink: https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9
Resource:
exploit
Details not found