GHSA-8H9X-89F2-M7X3 Grav: Decompression-bomb size cap bypassed by forged ZIP size in ZipArchiver/Installer

Summary The decompression-bomb bound added in 2.0.1 commit 1c1003c sums ZipArchive::statIndex$i'size' and rejects an archive whose declared uncompressed total exceeds system.gpm.archive.maxuncompressedsize default 1 GiB before extracting ZipArchiver.php:77-86; same logic in GPM\Installer::unZip a...

Grav: Decompression-bomb size cap bypassed by forged ZIP size in ZipArchiver/Installer

Summary The decompression-bomb bound added in 2.0.1 commit 1c1003c sums ZipArchive::statIndex$i'size' and rejects an archive whose declared uncompressed total exceeds system.gpm.archive.maxuncompressedsize default 1 GiB before extracting ZipArchiver.php:77-86; same logic in GPM\Installer::unZip a...

EUVD-2026-44647

Grav: Decompression-bomb size cap bypassed by forged ZIP size in ZipArchiver/Installer...

EUVD-2026-62534

Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits...

GHSA-928X-9MPW-8H56 Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits

Summary ZipArchiver::extract lacks limits on uncompressed size, file count, and nesting depth, creating a distinct, unpatched variant of the GHSA-2vcx-h8p2-9pg9 zip bomb vulnerability. While the parallel method Installer::unZip received comprehensive limits, ZipArchiver::extract remains...

CVE-2026-61690

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...

CVE-2026-61690 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...

CVE-2026-61690 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...

CVE-2026-61690

Grav's ZipArchiver::extract() calls ZipArchive::extractTo() without enforcing configured archive limits (uncompressed-size, file-count, nesting-depth). A low-privilege network attacker can submit a decompression bomb archive to exhaust disk space or inodes, causing denial of service. Fixed in Gra...

Duplicate Advisory: Grav: Decompression-bomb size cap bypassed by forged ZIP size in ZipArchiver/Installer

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8h9x-89f2-m7x3. This link is maintained to preserve external references. Original Description Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced ...

CVE-2026-61449 Grav before 2.0.2 Decompression Bomb via Forged ZIP Size

Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header ZipArchive::statIndex'size' and rejects archives exceeding...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the extract function of ZipArchiver due to missing limits on uncompressed...

CVE-2026-61455

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...

CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

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...

CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

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...