rootpwn

medium · CVSS v3 6.1 · CVSS v4 6.9

CVE-2026-111273

unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable th…

Description

unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable through the ar_entry_get_name() API. Attackers can supply a crafted TAR archive with a full ustar prefix and name to write a NUL byte past the allocation, corrupting heap memory and crashing the process.

Scores

Severity
medium
CVSS v2
5.6
CVSS v3
6.1
CVSS v4
6.9
EPSS
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