CVE-2026-61690

Published: Aug 19, 2026Modified: Aug 25, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

Grav is a file-based Web platform. Prior to 2.0.1, Grav ZipArchiver::extract() in system/src/Grav/Common/Filesystem/ZipArchiver.php passes archives to ZipArchive::extractTo() without enforcing the system.gpm.archive uncompressed-size, file-count, or nesting-depth limits. Code using Archiver::create('zip') to extract an attacker-controlled archive can exhaust disk space or inodes and make the site unavailable. This issue is fixed in version 2.0.1.

Related CWEs

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

References (4)

https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff

Source: security-advisories@github.com

https://github.com/getgrav/grav/releases/tag/2.0.1

Source: security-advisories@github.com

https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56

Source: security-advisories@github.com

https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.