XSS in Man D-Tale

CVE-2026-35052

D-Tale is the combination of a Flask back-end and a React front-end to view & analyze Pandas data structures. Prior to 3.22.0, users hosting D-Tale publicly while using a redis or shelf storage layer could be vulnerable to remote code execution allowing attackers to run malicious code on the server. This vulnerability is fixed in 3.22.0.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.009 (56.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-35052: held from 0.006 to 0.009.

EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-35052?
CVE-2026-35052 is a critical-severity vulnerability in Man D-Tale, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2026-04-06.
How severe is CVE-2026-35052?
Critical severity. CVSS v3 base score is 9.8 out of 10.