CVE-2026-19896
mangroup dtale Flask Session Cookie app.py build_secret_key random values
Description
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.
INFO
Published Date :
Aug. 15, 2026, 3:16 p.m.
Last Modified :
Aug. 15, 2026, 3:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-19896
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update mangroup dtale to version 3.22.1 or later.
- Apply the pending pull request if upgrading is not possible.
- Review and re-generate secret keys after updating.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19896.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19896 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19896
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19896 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19896 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:mangroup:dtale:*:*:*:*:*:*:*:*'], 'vendor': 'mangroup', 'modules': ['Flask Session Cookie'], 'product': 'dtale', 'versions': [{'status': 'affected', 'version': '3.0'}, {'status': 'affected', 'version': '3.1'}, {'status': 'affected', 'version': '3.2'}, {'status': 'affected', 'version': '3.3'}, {'status': 'affected', 'version': '3.4'}, {'status': 'affected', 'version': '3.5'}, {'status': 'affected', 'version': '3.6'}, {'status': 'affected', 'version': '3.7'}, {'status': 'affected', 'version': '3.8'}, {'status': 'affected', 'version': '3.9'}, {'status': 'affected', 'version': '3.10'}, {'status': 'affected', 'version': '3.11'}, {'status': 'affected', 'version': '3.12'}, {'status': 'affected', 'version': '3.13'}, {'status': 'affected', 'version': '3.14'}, {'status': 'affected', 'version': '3.15'}, {'status': 'affected', 'version': '3.16'}, {'status': 'affected', 'version': '3.17'}, {'status': 'affected', 'version': '3.18'}, {'status': 'affected', 'version': '3.19'}, {'status': 'affected', 'version': '3.20'}, {'status': 'affected', 'version': '3.21'}, {'status': 'affected', 'version': '3.22.0'}]}] Added Description 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. Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:N/AC:H/Au:N/C:P/I:N/A:N) Added CWE CWE-310 Added CWE CWE-330 Added Reference https://github.com/man-group/dtale/issues/960 Added Reference https://github.com/man-group/dtale/pull/963 Added Reference https://vuldb.com/cve/CVE-2026-19896 Added Reference https://vuldb.com/submit/870672 Added Reference https://vuldb.com/vuln/390086 Added Reference https://vuldb.com/vuln/390086/cti