CVE-2025-58183 - CVE House
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Status published Unknown CVE-2025-58183

Unbounded allocation when parsing GNU sparse map in archive/tar

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Harshit Gupta (Mr HAX)

References

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Affected Vendor

Go standard library

View all reports →

Affected Software

archive/tar
Vulnerable Versions:
0, 1.25.0

Timeline

Official Publish: October 29th, 2025
Last Modified: November 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.