CVE-2026-61455
7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| getgrav | grav | 0 < 2.0.1 | affected |
| getgrav | grav | 2.0.1 | unaffected |
Weaknesses
- CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
Additional References
References
- https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56
- https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-ziparchiver
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