# CVE-2026-19896

## Summary

- **CVE ID:** CVE-2026-19896
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P)
- **CWE:** CWE-330, CWE-310
- **Published:** Aug 15, 2026
- **Last Modified:** Aug 18, 2026

## 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.

## Affected Products

- mangroup — dtale (3.0)
- mangroup — dtale (3.1)
- mangroup — dtale (3.2)
- mangroup — dtale (3.3)
- mangroup — dtale (3.4)
- mangroup — dtale (3.5)
- mangroup — dtale (3.6)
- mangroup — dtale (3.7)
- mangroup — dtale (3.8)
- mangroup — dtale (3.9)
- mangroup — dtale (3.10)
- mangroup — dtale (3.11)
- mangroup — dtale (3.12)
- mangroup — dtale (3.13)
- mangroup — dtale (3.14)
- mangroup — dtale (3.15)
- mangroup — dtale (3.16)
- mangroup — dtale (3.17)
- mangroup — dtale (3.18)
- mangroup — dtale (3.19)
- mangroup — dtale (3.20)
- mangroup — dtale (3.21)
- mangroup — dtale (3.22.0)

## References

- [CNA](https://vuldb.com/vuln/390086)
- [CNA](https://vuldb.com/vuln/390086/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-19896)
- [CNA](https://vuldb.com/submit/870672)
- [CNA](https://github.com/man-group/dtale/issues/960)
- [CNA](https://github.com/man-group/dtale/pull/963)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.31%
- **EPSS Percentile:** 23.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._