CVE-2026-71266

HighCVSS 7.8/10Last modified Oct 24, 2026

Description

tinyobjloader-c's tinyobj_parse_and_index_mtl_file (tinyobj_loader_c.h) reads each line of a .mtl material file into a fixed 4096-byte stack buffer via memcpy(linebuf, p, p_len), guarded only by . The identical vulnerable pattern is duplicated in a second function in the same file.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121

Affected software

Vendor	Product	Versions
syoyo	tinyobjloader-c	<= *

References

Timeline

Published: Aug 5, 2026
Last modified: Oct 24, 2026
NVD status: Deferred

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