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CVE-2025-58183

Unbounded allocation when parsing GNU sparse map in archive/tar

Published: Oct 29, 2025Updated: Nov 4, 2025 Sources: CVE List NVD BDU
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.4%
Top 70.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions can cause a Reader to read an unbounded amount of data from the archive into memory. When reading from a compressed source, a small compressed input can result in large allocations.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Affected Products

archive/tarGo standard library
Library
OSS Libraries / go
GoThe Go ProjectOSS Libraries
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Platform V SberLinux OS ServerАО «СберТех»
On-premOS
Operating Systems / linux-distro
Аврора ЦентрООО "Открытая мобильная платформа"
On-prem
Operating Systems / mobile-os
go standard libraryoss-projectUSOSS Librariesaka golang standard library, net/http, crypto/x509, html/template
the go projectoss-projectOSS Librariesaka go, golang-google-protobuf, crypto
ооо «ред софт»commercialRUOperating Systemsaka red soft
ао «сбертех»commercialRUOperating Systemsaka ao sbertech, сбертех
ооо "открытая мобильная платформа"commercialRUOperating Systems

Exploitability

Official Patch Available

References

https://go.dev/cl/709861
go.dev
https://go.dev/issue/75677
go.dev
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
groups.google.com
and 6 more references View all →

Timeline

Published
Oct 29, 2025
Last Updated
Nov 4, 2025

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