CVE-2025-58183None▾ SunlitUnbounded allocation when parsing GNU sparse map in archive/tar
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.4%
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.
stdlib >= 1.25.0, < 1.25.2Upgrade to a patched release:
stdlib 1.25.2Connected by shared product, vendor, weakness, or advisory.
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