CVE-2026-42212

SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-laughs DoS in VMID parser

HIGH
7.1
CVSS Score
Published: May 8, 2026 at 09:35 PM UTC
Updated: October 26, 2026 at 06:10 PM UTC
1 product affected across 1 vendorSolidCAM-GPPL-IDE

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

SolidCAM-GPPL-IDE is an unofficial, independently developed extension, Postprocessor IDE for SolidCAM. From version 1.0.0 to before version 1.0.2, Opening a .gpp file in the SolidCAM Postprocessor IDE extension causes the language server to parse a companion .vmid file from the same directory (naming convention: foo.gpp to foo.vmid). The VMID parser called XDocument.Load(path) without any XmlReaderSettings, inheriting the framework defaults which in .NET 8 allow DTD processing. A malicious .vmid file could therefore: disclose local files via external entity references, exhaust memory via recursive entity expansion, and cause denial of service via oversized or deeply nested XML. This issue has been patched in version 1.0.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.0.0 ≤ v < 1.0.21.0.0
Affected range stops below 1.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400CWE-611CWE-776

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