CVE-2026-61690

EUVD-2026-62534

19.08.2026, 16:18

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.

Data Amplification

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
GitHub_M	CNA	6.5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
getgrav	grav	𝑥 < 2.0.1	CNA

Common Weakness Enumeration

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
The software does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

References

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

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

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