CVE-2026-61455

MEDIUM 6.5

Grav before 2.0.1 Decompression Bomb via ZipArchiver

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract() that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage resources.

CWE	CWE-409
Vendor	getgrav
Product	grav
Published	Jul 10, 2026
Last Updated	Jul 10, 2026

Stay Ahead of the Next One

Get instant alerts for getgrav grav

Be the first to know when new medium vulnerabilities affecting getgrav grav are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

getgrav / grav

0 < 2.0.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56 vulncheck.com: https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-ziparchiver

Credits

🔍 alienkeric