Buffer overflow in Liblas
CVE-2026-112059
libLAS through 1.8.1 contains a heap out-of-bounds write vulnerability in the point record reader caused by truncating the schema byte size to 16 bits when sizing the point buffer. Attackers can craft a .las file with a LASSchema variable length record whose schema exceeds 65535 bytes, so tools like lasinfo, las2las, or las2txt write attacker-controlled bytes past the heap buffer, causing memory corruption and crashes.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haindpwn/liblas-record-length-truncation-heap-overflow (third-party-advisory)
- github.com/libLAS/libLAS/blob/1.8.1/src/detail/reader/reader.cpp (technical-description)
- github.com/libLAS/libLAS/blob/1.8.1/src/header.cpp (technical-description)
- www.vulncheck.com/advisories/liblas-through-1.8.1-heap-out-of-bounds-write-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112059?
- CVE-2026-112059 is a medium-severity vulnerability in Liblas, classified under Out-of-bounds Write. CVSS score: 6.1/10. Published 2026-10-18.
- How severe is CVE-2026-112059?
- Medium severity. CVSS v3 base score is 6.1 out of 10.