Vulnerability in GNU Tar PAX leading to Excessive Memory Allocation
CVE-2025-58183

4.3MEDIUM

Key Information:

Vendor

Go Standard Library

Status
Archive/tar
Vendor
CVE Published:
29 October 2025

What is CVE-2025-58183?

The GNU tar pax 1.0 implementation has a vulnerability that allows a specially crafted archive with numerous sparse regions to cause excessive memory consumption. When a Reader processes such an archive, it can lead to unlimited data being loaded into memory, especially problematic during the reading of compressed sources. This could result in significant performance degradation or even application crashes due to memory exhaustion.

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Affected Version(s)

archive/tar 0 < 1.24.8

archive/tar 1.25.0 < 1.25.2

References

https://go.dev/cl/709861
https://go.dev/issue/75677
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Harshit Gupta (Mr HAX)
JSON
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