Vulnerability in libLAS

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

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