CVE-2026-32288

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/763766	Patch
https://go.dev/issue/78301	Issue Tracking
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU	Mailing List Release Notes
https://pkg.go.dev/vuln/GO-2026-4869	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:golang:go::::::::
	cpe:2.3:a:golang:go::::::::

History

25 Jul 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) tar.Reader puede asignar una cantidad ilimitada de memoria al leer un archivo creado maliciosamente que contiene un gran número de regiones dispersas codificadas en el formato 'old GNU sparse map'.

17 Jun 2026, 10:35

Type	Values Removed	Values Added
References	~~() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Release Notes, Mailing List~~	() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Mailing List, Release Notes

16 Apr 2026, 19:08

Type	Values Removed	Values Added
CWE		CWE-770
References	~~() https://go.dev/cl/763766 -~~	() https://go.dev/cl/763766 - Patch
References	~~() https://go.dev/issue/78301 -~~	() https://go.dev/issue/78301 - Issue Tracking
References	~~() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU -~~	() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Release Notes, Mailing List
References	~~() https://pkg.go.dev/vuln/GO-2026-4869 -~~	() https://pkg.go.dev/vuln/GO-2026-4869 - Vendor Advisory
First Time		Golang go Golang
CPE		cpe:2.3:a:golang:go::::::::

13 Apr 2026, 19:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5

08 Apr 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 02:16

Updated : 2026-07-25 10:10

NVD link : CVE-2026-32288

Mitre link : CVE-2026-32288

CVE.ORG link : CVE-2026-32288

JSON object : View

Products Affected

golang

go

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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