CVE-2026-111273mediumCWE-193

CVE-2026-111273: medium-severity vulnerability in selmf unarr

unarr through 1.1.1 Off-by-One Heap Buffer Overflow via tar_get_name

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9epss 0.2%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
selmf · unarr
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CVE-2026-111274MEDIUMunarr through 1.1.1 Heap Out-of-Bounds Read via zip_parse_extra_fieldsEPSS 0.2%