The vulnerability of the Lz4Decode function in the NanaZip.Core/SevenZip/CPP/7zip/Archive/SquashfsHandler.cpp component of the SquashFS compiler, a 7-Zip-based archive compressor, allows a hacker to disclose protected information and cause a service failure.

The vulnerability of the Lz4Decode function in the NanaZip.Core/SevenZip/CPP/7zip/Archive/SquashfsHandler.cpp component of the SquashFS compressor, a 7-Zip-based archive compressor, involves reading data beyond the allowed range of memory. Exploiting this vulnerability can allow an attacker to...

CVE-2026-54616

NanaZip (a 7-Zip derivative for modern Windows) is affected by a heap out-of-bounds read in the SquashFS LZ4 decompressor (Lz4Decode in SquashfsHandler.cpp). The root cause is that the function only rejects a zero return from LZ4_decompress_safe, while malformed input produces a negative error va...

EUVD-2026-63481

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 1.0.88.0 until stable version 6.0.1698.0 and preview version 6.5.1742.0, the Lz4Decode function in NanaZip.Core/SevenZip/CPP/7zip/Archive/SquashfsHandler.cpp rejects only a zero return from LZ4decompresssafe...

CVE-2026-54616 NanaZip: Heap out-of-bounds read in NanaZip SquashFS LZ4 decompressor via unchecked negative return value

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 1.0.88.0 until stable version 6.0.1698.0 and preview version 6.5.1742.0, the Lz4Decode function in NanaZip.Core/SevenZip/CPP/7zip/Archive/SquashfsHandler.cpp rejects only a zero return from LZ4decompresssafe...

SUSE 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...

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...

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...

Use of Uninitialized Resource

Overview Affected versions of this package are vulnerable to Use of Uninitialized Resource in the SquashFS archive handler due to uninitialized memory in the blockToNode array. An attacker can cause denial of service or potentially disclose heap information by providing a crafted SquashFS image...

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...

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...