What’s Vulnerable › Vulnerabilities

CVE-2026-112059: libLAS through 1.8.1 Heap Out-of-Bounds Write via LASSchema VLR

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-22
• Weakness: CWE-787

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.

Affected products

• libLAS: through 1.8.1

References

• https://github.com/libLAS/libLAS/blob/1.8.1/src/detail/reader/reader.cpp
• https://github.com/libLAS/libLAS/blob/1.8.1/src/header.cpp
• https://hackmd.io/@haindpwn/liblas-record-length-truncation-heap-overflow
• https://www.vulncheck.com/advisories/liblas-through-1.8.1-heap-out-of-bounds-write-via-lasschema-vlr
• https://hackmd.io/@haindpwn/cve-2026-112059-liblas-record-length-truncation-heap-overflow

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