CVE Catalog

CVE-2026-103222

MediumCVSS 5.6
Published: Updated: Translated: NVD NIST

Summary

Blosc C-Blosc2 up to 3.3.2 has an integer overflow vulnerability in the function blosclz_decompress in blosc/blosclz.c of the blosclz Decompression component. The attack can be launched remotely but is difficult to exploit. Upgrading to version 3.3.3 fixes the issue.

Risk Assessment

Integer overflow can lead to unexpected behavior such as crashes or improper data processing, which could be exploited in attacks.

Recommendation

Upgrade C-Blosc2 to version 3.3.3 or later. Apply the patch named fe2964d114d97847f56570a0ab2be2c57ccbeedc.

Related vulnerabilities

Original NVD description (English source)

A vulnerability was determined in Blosc C-Blosc2 up to 3.3.2. This impacts the function blosclz_decompress of the file blosc/blosclz.c of the component blosclz Decompression. Executing a manipulation can lead to integer overflow. The attack may be launched remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. Upgrading to version 3.3.3 will fix this issue. This patch is called fe2964d114d97847f56570a0ab2be2c57ccbeedc. The affected component should be upgraded.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS