CVE-2026-32288 — Allocation of Resources Without Limits or Throttling in Standard Library Archive TAR

CWE-770 — Allocation of Resources Without Limits or Throttling10 documents8 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 99.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
GO Standard Library Archive TAR
Timeline
PublishedApr 8

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages1 packages

▶CVEListV5go_standard_library/archive_tar1.26.0-0 — 1.26.2+1

🔴Vulnerability Details

4
GHSA
GHSA-x4jj-h2v8-hqqv: tar↗2026-04-08
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CVEList
Unbounded allocation for old GNU sparse in archive/tar↗2026-04-08
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OSV
CVE-2026-32288: tar↗2026-04-08
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OSV
Unbounded allocation for old GNU sparse in archive/tar↗2026-04-07
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📋Vendor Advisories

2
Red Hat
archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive↗2026-04-08
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Debian
CVE-2026-32288: golang-1.15 - tar.Reader can allocate an unbounded amount of memory when reading a maliciously...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-32288 Impact, Exploitability, and Mitigation Steps | Wiz↗
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💬Community

2
Bugzilla
CVE-2026-32288 archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive↗2026-04-08
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Bugzilla
CVE-2026-32288 golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive [fedora-all]↗2026-04-08
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CVE-2026-32288 — MEDIUM severity | cvebase