Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, or directory depth. This issue is fixed in version 2.0.0.
CVE-2026-59193
MEDIUMNVD 4.94.9Trending — 3 sources updated this weekElevated
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 4.9 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: —CVSS: 4.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.9
- EG Score
- 4.9(low)
- EPSS
- —
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (3)
Auto-updated Jul 10, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available
Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip() (CWE-409) · Advisory · getgrav/grav · GitHub
https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9github_release Patch Available
Release 2.0.0 (getgrav/grav)
Patch available: getgrav/grav 2.0.0
https://github.com/getgrav/grav/releases/tag/2.0.0github_commit Patch Available
commit 23d6f2adf4ce (getgrav/grav)
Patch available: getgrav/grav 2.0.0 (contains commit 23d6f2adf4ce)
https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 16:00 UTCEG score recompute▼ 2.00
- 2026-07-10 20:19 UTCNVD updateCVSS v3 → 4.9
- 2026-07-10 17:13 UTCEG score recompute
- 2026-07-10 17:12 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-59193?
CVE-2026-59193 is a medium vulnerability published on July 10, 2026. Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, or…
When was CVE-2026-59193 disclosed?
CVE-2026-59193 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-59193?
CVE-2026-59193 has a CVSS v3 base score of 4.9 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-59193?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59193, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-59193
Is Your Infrastructure Affected by CVE-2026-59193?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.