CVE-2026-103222

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.

• CWE-189
• CWE-190

• https://github.com/Blosc/c-blosc2/
• https://github.com/Blosc/c-blosc2/commit/fe2964d114d97847f56570a0ab2be2c57ccbeedc
• https://github.com/Blosc/c-blosc2/releases/tag/v3.3.3
• https://vuldb.com/cve/CVE-2026-103222
• https://vuldb.com/submit/954976
• https://vuldb.com/vuln/411905
• https://vuldb.com/vuln/411905/cti

Published

Sep 30, 2026

Last Modified

Sep 30, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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