Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits
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.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-61455US | — | — | ||
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… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61690.jsonADVISORY
- https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ffFIX
- https://github.com/getgrav/grav/releases/tag/2.0.1WEB
- https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-61690ADVISORY
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