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TI-2026-23850 Aliases CVE-2026-31156GHSA-p6vg-5mm7-744x

A path injection vulnerability exists in OpenPLC v3…

Priority MEDIUM 62CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00387 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-03-09:*:*:*:*:*:*:*2024-03-09VulnerableOpenPLC
cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*not specified by NVDRunning onOpenPLC
  • cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-03-09:*:*:*:*:*:*:* Versions 2024-03-09 Vulnerable ·OpenPLC
  • cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·OpenPLC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-31156
  2. 2026-10-03 Alias added: GHSA-p6vg-5mm7-744x

References

Exploit 1

  • TI-2024-22495 Stack-based buffer overflow in OpenPLC_v3 CVSS 3.1CRITICAL 9.8
  • TI-2024-26520 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-26519 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24528 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24527 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2021-11719 Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary… CVSS 3.1HIGH 8.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences