CVE-2026-71267
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductRxi Microtar
PublishedAug 5, 2026
First seenAug 5, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rxi microtar | 0 | — |
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