CVE-2026-31156

6.5 MEDIUM

A path injection vulnerability exists in OpenPLC v3 (2c82b0e79c53f8c1f1458eee15fec173400d6e1a) as the binary program compiled from glue_g...

Published: 2026-05-13 · Last updated: 2026-05-26

Severity and scoring

CVSS: 6.5 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-22

Affected products

Vendor	Product
openplcproject	openplc_v3_firmware

Description

A path injection vulnerability exists in OpenPLC v3 (2c82b0e79c53f8c1f1458eee15fec173400d6e1a) as the binary program compiled from glue_generator.cpp does not perform any validation on the file path parameters passed via the command line. The user-controlled input parameters are directly passed to the underlying file operation functions (fopen/ifstream/ofstream) for file reading and writing. An attacker can exploit this vulnerability by constructing a malicious path to read arbitrary readable files.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-31156
[Other]http://openplc.com
[Exploit reference]https://github.com/unicorn-hyh/CVE-2026-31156
[Exploit reference]https://github.com/unicorn-hyh/CVE-2026-31156

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