CVE-2026-61455

EUVD-2026-42904
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.
Data Amplification
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
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.
VendorProductVersionSource
getgravgrav
𝑥
< 2.0.1
CNA
Common Weakness Enumeration
References
https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56
https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-ziparchiver
https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56