CVE-2026-32288
MEDIUM5.5EPSS 0.00%Unbounded allocation for old GNU sparse in archive/tar
Published: 4/7/2026Modified: 5/15/2026
Description
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Affected packages (7)
- Bitnami/golangfrom 0, < 1.25.9, >= 1.26.0-0, < 1.26.2
- Debian/golang-1.15from 0
- Debian/golang-1.19from 0
- Debian/golang-1.24from 0
- Debian/golang-1.25from 0, < 1.25.9-1
- Debian/golang-1.26from 0, < 1.26.2-1
- Go/stdlibfrom 0, < 1.25.9, >= 1.26.0-0, < 1.26.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |