What is CVE-2026-70558?

CVE-2026-70558 is a critical-severity vulnerability in Datalinkdc Dinky, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-08-06.

How severe is CVE-2026-70558?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Datalinkdc Dinky

CVE-2026-70558

Dinky's POST /download/uploadFromRsByLocal handler passes the caller-supplied path parameter directly to new File(path) and file.transferTo(dest) with no path validation. The route is marked @SaIgnore and /download/** is excluded from the…

Vulnerability class: Unrestricted File Upload

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Datalinkdc Dinky — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-70558?: CVE-2026-70558 is a critical-severity vulnerability in Datalinkdc Dinky, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-08-06.
How severe is CVE-2026-70558?: Critical severity. CVSS v3 base score is 9.8 out of 10.