CVE-2026-32288
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
ProductGo
PublishedApr 8, 2026
First seenApr 8, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- golang go1.25.9, 1.26.2 or later
- stdlib1.25.9, 1.26.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| golang go | v < 1.25.9, 1.26.0 ≤ v < 1.26.2 | 1.25.9, 1.26.2 |
| stdlibGo | v < 1.25.9, 1.26.0-0 ≤ v < 1.26.2 | 1.25.9, 1.26.2 |
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