Buffer overflow in Syoyo Tinyobjloader-c
CVE-2026-71266
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 `linebuf` via memcpy(linebuf, p, p_len), guarded only by `assert(p_len < 4095)`. Because…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Syoyo Tinyobjloader-c — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-71266?
- CVE-2026-71266 is a high-severity vulnerability in Syoyo Tinyobjloader-c, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-08-05.
- How severe is CVE-2026-71266?
- High severity. CVSS v3 base score is 7.8 out of 10.