Blosc C-Blosc2 blosclz Decompression blosclz.c blosclz_decompress integer overflow
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.
CVE-2026-103222
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103222
C-Blosc2
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:blosc:c-blosc2:*:*:*:*:*:*:*:*"
],
"vendor": "Blosc",
"modules": [
"blosclz Decompression"
],
"product": "C-Blosc2",
"versions": [
{
"status": "affected",
"version": "3.3.0"
},
{
"status": "affected",
"version": "3.3.1"
},
{
"status": "affected",
"version": "3.3.2"
},
{
"status": "unaffected",
"version": "3.3.3"
}
]
}
]- Related CVEs
- CVE-2026-103222
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4600 · Revision 1
- Added to Heist Feed
- Publisher date