Vulnerabilities CVE-2026-71267

CVE-2026-71267

Critical

Open

TLP:CLEAR

microtar Stack Buffer Overflow in mtar_write_file_header() and mtar_write_dir_header()

NVD CVE.org

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Description

microtar's mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.

Details

CVSS Score: 9.8
EPSS Score ⓘ: 0.31%

23.4th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Aug 5, 2026
Last Modified: Aug 10, 2026

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