CVE-2026-42213
CVE-2026-42213 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 4.0 base score 5.1)
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-28840
- Weakness: CWE-22
- Published:
- Last modified:
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, the inc "filename" directive in GPPL postprocessor files is resolved by GpplDocumentLinkHandler into a clickable link (VS Code textDocument/documentLink). The handler accepted arbitrary paths — absolute, relative with parent-directory segments (..\..\..\), UNC (\\server\share\), and arbitrary subfolders — and called File.Exists on each to decide whether to render the link. Two distinct attack surfaces resulted: information disclosure via File.Exists probing and NTLM hash leak via UNC path probing. This issue has been patched in version 1.0.2.
Frequently asked questions
- What is CVE-2026-42213?
- SolidCAM-GPPL-IDE is an unofficial, independently developed extension, Postprocessor IDE for SolidCAM. From version 1.0.0 to before version 1.0.2, the inc "filename" directive in GPPL postprocessor files is resolved by GpplDocumentLinkHandler into a clickable link (VS Code textDocument/documentLink). The handler accepted arbitrary paths — absolute, relative with parent-directory segments (..\..\..\), UNC (\\server\share\), and arbitrary subfolders — and called File.Exists on each to decide whether to render the link. Two distinct attack surfaces resulted: information disclosure via File.Exists probing and NTLM hash leak via UNC path probing. This issue has been patched in version 1.0.2.
- How severe is CVE-2026-42213?
- CVE-2026-42213 has a CVSS 4.0 base score of 5.1, rated medium severity.
- Is CVE-2026-42213 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-42213?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-42213 have an EU (EUVD) identifier?
- Yes. CVE-2026-42213 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28840.
- When was CVE-2026-42213 published?
- CVE-2026-42213 was published on 2026-05-08 and last updated on 2026-06-17.
References
- https://github.com/anzory/SolidCAM-GPPL-IDE/commit/9d0ba808afd143ede448026a5dc681bfdc5c138d
- https://github.com/anzory/SolidCAM-GPPL-IDE/releases/tag/v1.0.2
- https://github.com/anzory/SolidCAM-GPPL-IDE/security/advisories/GHSA-xvpx-9p39-g62m
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