CVE-2025-58183

CVE-2025-58183

Medium · published October 30, 2025

CVSS v3.1
4.3
EPSS
0%
Percentile
37.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00443 · 37.5th percentile
Published
2025-10-30T03:16Z
References (5)
https://go.dev/cl/709861 · [email protected]https://go.dev/issue/75677 · [email protected]https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI · [email protected]https://pkg.go.dev/vuln/GO-2025-4014 · [email protected]http://www.openwall.com/lists/oss-security/2025/10/08/1 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 29 OCT 22:10Z
    Unbounded allocation when parsing GNU sparse map in archive/tar
    cvelistv5