GO-2026-4869

vendorUSosv

Unbounded allocation for old GNU sparse in archive/tar

view advisory published 2026-04-07Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-32288US	medium5.5	0.29% (21st)	—	2026-04-08
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" for…

references

External citations — patches, advisories, analysis.

https://go.dev/cl/763766FIX
https://go.dev/issue/78301REPORT
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUWEB

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan