CVE-2026-33147

GMT is an open source collection of command-line tools for manipulating geographic and Cartesian data sets. In versions from 6.6.0 and prior, a stack-based buffer overflow vulnerability was identified in the gmt_remote_dataset_id function within src/gmt_remote.c. This issue occurs when a specially crafted long string is passed as a dataset identifier (e.g., via the which module), leading to a crash or potential arbitrary code execution. This issue has been patched via commit 0ad2b49.

Score

CVSS 3.1 7.8 High

Status

Analyzed - security-advisories@github.com

Published

2026-03-20

Last modified

2026-03-25

Weaknesses

CWE-121

Affected products

• Gmt (Generic-mapping-tools)
• Gmt (Genericmappingtools)

References

• https://github.com/GenericMappingTools/gmt/commit/0ad2b491470df82c9ec1139dcbd70502fa28a082
• https://github.com/GenericMappingTools/gmt/security/advisories/GHSA-fqxx-62x7-9gwg