CVE-2026-35052
CVE-2026-35052 is a Cross-site Scripting (XSS) vulnerability in dtale. O3 Security confirms whether CVE-2026-35052 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
D-Tale affected by Remote Code Execution through redis/shelf storage
Real-World Exposure
dtaleReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | dtale | all versions | 3.22.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for dtale. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update dtale to 3.22.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-35052 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2026-35052 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2026-35052. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-35052 in your dependencies?
O3 detects CVE-2026-35052 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.