CVE-2026-110603

LASzip through 3.5.0 Invalid Free via Truncated VLR Header in laszip_read_header

5.8 Medium

LASzip through 3.5.0 contains an invalid free vulnerability in laszip_read_header() that allows attackers to free uninitialized heap pointers via truncated variable length record data. Attackers can supply a crafted LAS/LAZ file with an inflated VLR count that, when opened and destroyed through the C API, crashes the process and corrupts the heap.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

0.17%Unchanged since Oct 15, 2026

What each source reports

CVE List Score used 5.8

LASzip through 3.5.0 Invalid Free via Truncated VLR Header in laszip_read_header

Record: CVE-2026-110603
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
Weakness: CWE-824
Updated: 2026-11-02

EUVDEUVD-2026-101231 5.8

Record: EUVD-2026-101231
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-m6xh-mjq9-hv5w 5.8

LASzip through 3.5.0 contains an invalid free vulnerability in laszip_read_header() that allows...

Record: GHSA-m6xh-mjq9-hv5w
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
Weakness: CWE-824
Updated: 2026-11-02

NVD 5.8

Record: CVE-2026-110603
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
Weakness: CWE-824
Updated: 2026-11-02

OSV 5.8

LASzip through 3.5.0 Invalid Free via Truncated VLR Header in laszip_read_header

Record: CVE-2026-110603
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-824
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-110603 5.8

Record: DEBIAN-CVE-2026-110603
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-110603 5.8

Record: UBUNTU-CVE-2026-110603
CVSS 4.0: 5.8 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
Updated: 2026-11-02

Affected products

rapidlasso laszip

Affected packages

Affected packages
Package	Affected	Fixed
`laszip` Debian:13	All versions, plus listed versions 3.5.0+really3.5.0-13.5.0-2	None known
`laszip` Debian:14	All versions, plus listed versions 3.5.0+really3.5.0-13.5.0-2	None known
`laszip` Ubuntu:20.04:LTS	All versions, plus listed versions 3.4.1-23.4.3-13.4.3-1build1	None known
`laszip` Ubuntu:22.04:LTS	All versions, plus listed versions 3.4.3-2	None known
`laszip` Ubuntu:24.04:LTS	All versions, plus listed versions 3.5.0-1	None known
`laszip` Ubuntu:26.10	All versions, plus listed versions 3.5.0+really3.5.0-1	None known
`laszip` Ubuntu:26.04:LTS	All versions, plus listed versions 3.5.0-23.5.0+really3.5.0-1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110603 is a medium vulnerability (CVSS 5.8) in Rapidlasso Laszip, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.

References

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