CVE-2026-112059
libLAS through 1.8.1 Heap Out-of-Bounds Write via LASSchema VLR
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 18, 2026
- Updated
- Oct 22, 2026
- Reserved
- Oct 18, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H | VulnCheck |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
libLASlibLAS |
|
References
- https://hackmd.io/@haindpwn/liblas-record-length-truncation-heap-overflowthird-party-advisory
- https://github.com/libLAS/libLAS/blob/1.8.1/src/detail/reader/reader.cpptechnical-description
- https://github.com/libLAS/libLAS/blob/1.8.1/src/header.cpptechnical-description
- VulnCheck Advisory: libLAS through 1.8.1 Heap Out-of-Bounds Write via LASSchema VLRthird-party-advisory
- https://hackmd.io/@haindpwn/cve-2026-112059-liblas-record-length-truncation-heap-overflowexploit
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