---
id: CVE-2026-19896
title: A flaw has been found in mangroup dtale up to 3.22.0
summary: >-
  A flaw has been found in mangroup dtale up to 3.22.0. This vulnerability
  affects the function build_secret_key of the file dtale/app.py of the
  component Flask Session Cookie. This manipulation causes insufficiently random
  values. Remote …
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-310
  - CWE-330
published: '2026-08-15'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19896'
references:
  - url: 'https://github.com/man-group/dtale/issues/960'
    label: cna@vuldb.com
  - url: 'https://github.com/man-group/dtale/pull/963'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-19896'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/870672'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/390086'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/390086/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-08-16T13:39:03.111Z'
epss: 0.00308
epssPercentile: 0.2376
---

## Overview

A flaw has been found in mangroup dtale up to 3.22.0. This vulnerability affects the function build_secret_key of the file dtale/app.py of the component Flask Session Cookie. This manipulation causes insufficiently random values. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.