CVE-2025-58183tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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
- 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://go.dev/cl/709861
- https://go.dev/issue/75677
- https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
- https://pkg.go.dev/vuln/GO-2025-4014
- http://www.openwall.com/lists/oss-security/2025/10/08/1
The CVE record on cve.org NVD's entry
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