CVE-2026-48104 GHSL-2026-120: 7-Zip SquashFS BlockToNode uninitialized heap read

7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, blockToNode is allocated with capacity for every metadata block but populated...

CVE-2026-48104

7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, blockToNode is allocated with capacity for every metadata block but populated...

EUVD-2026-34853

7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, blockToNode is allocated with capacity for every metadata block but populated...

CVE-2026-48092

A flaw was found in 7-Zip, a file archiver. This vulnerability, affecting 32-bit builds, involves a heap memory disclosure caused by an integer overflow in the SquashFS ReadBlock function. An attacker can exploit this by providing a specially crafted archive, which, when processed, allows the...

ALPINE-CVE-2026-48092

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092 7-Zip SquashFS Fragment Offset Overflow (GHSL-2026-116)

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092 7-Zip SquashFS Fragment Offset Overflow (GHSL-2026-116)

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

EUVD-2026-34837

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass...

CVE-2026-48092

CVE-2026-48092 affects 7-Zip versions 9.34 through 26.00 on 32-bit builds. The root cause is a 32-bit integer overflow in the SquashFS ReadBlock function, allowing an attacker-controlled node.Offset to bypass the fragment bounds check and cause memcpy to read heap memory into the extracted file, ...

7-Zip 缓冲区错误漏洞

7-Zip is an open-source compression software developed by 7-Zip. Versions 9.34 to 26.00 of 7-Zip contained a buffer error vulnerability, which was caused by an integer overflow in SquashFS fragment offsets. This vulnerability could allow attackers to manipulate node offset values to bypass fragme...

7-Zip >= 9.18 < 26.01 SquashFS BlockToNode OOB Read (GHSL-2026-115_GHSL-2026-122)

The version of 7-Zip installed on the remote Windows host is = 9.18 and prior to 26.01. It is, therefore, affected by multiple vulnerabilities: - An out-of-bounds read exists in 7-Zip's SquashFS BlockToNode handling due to an uninitialized heap read, which can lead to a crash when processing a...

7-Zip >= 9.18 < 26.01 SquashFS Integer Overflow (GHSL-2026-115_GHSL-2026-122)

The version of 7-Zip installed on the remote Windows host is = 9.18 and prior to 26.01. It is, therefore, potentially affected by a vulnerability: - An integer overflow in the SquashFS fragment offset handling can lead to a crash when processing a crafted SquashFS archive. This vulnerability only...

7-Zip 安全漏洞

7-Zip is an open-source compression software developed by 7-Zip. Versions 9.18 to 26.00 of 7-Zip contain security vulnerabilities. These vulnerabilities stem from sparse filling of index arrays in the SquashFS archive processor, which allows for uninitialized heap reads, potentially leading to...

Astra Linux - уязвимость в u-boot

Integer overflows in memory allocation in Das U-Boot before 2025.01-rc1 occur due to a crafted squashfs filesystem using sbrk, request2size, or because ptrdifft is mishandled on x8664...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Squashfs: fixed the handling and sanity checking of the xattrids count A Sysbot 1 that corrupted the filesystem exposed two flaws in the handling and sanity checking of the xattrids count in the filesystem. Both of these flaws...

Astra Linux – Vulnerability in squashfs-tools

The squashfsopendir function in unsquash-2.c within Squashfs-Tools 4.5 enables Directory Traversal, another vulnerability distinct from CVE-2021-40153. A squashfs filesystem that includes a symbolic link, along with files under the same filename, can cause unsquashfs to first create the symbolic...

Astra Linux – Vulnerability in squashfs-tools

In Squashfs-Tools 4.5, the squashfsopendir variable in unsquash-1.c stores the filename within the directory entry. This filename is then used by unsquashfs to create the new file during the unsquash process. The filename is not validated for traversal outside of the destination directory, allowi...