CVE-2026-59193 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-59193MEDIUM

getgrav grav — Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip()

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   H   N   N   N   H    6.9   .0039   32.3     —

AFFECTED
  Product  Versions             Fixed
  grav     >= 1.0.0, < 2.0.0 –  —

TIMELINE
  Jul 2   Reserved by GitHub_M
  Jul 10  EXPLOIT PUBLISHED — CVE-2026-59193 (getgrav grav). Public exploit reference added.
  Jul 10  Published (CNA: GitHub_M)

CWE-409 · CNA: GitHub_M · CVSS v4.0 · 3 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 2, 2026	Reserved	Reserved by GitHub_M
July 10, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-59193 (getgrav grav). Public exploit reference added.
July 10, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
getgrav	grav	—	>= 1.0.0, < 2.0.0	—

Weaknesses

CWE-409

References (3)

https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781 [Patch]
https://github.com/getgrav/grav/releases/tag/2.0.0 [Product]
https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9 [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-59193 at cve.org

Vendors: getgrav

Weaknesses: CWE-409

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-59193 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.