PT-2026-31065 · Go Standard Library · Archive Tar

Colin Walters + 2 · Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-32288

NVD

tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.

Related Identifiers

CVE-2026-32288

Affected Products

Archive Tar

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-32288 · Security Note
• https://go.dev/issue/78301 · Note
• https://go.dev/cl/763766 · Note
• https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU · Note
• https://pkg.go.dev/vuln/GO-2026-4869 · Note