What’s Vulnerable › Vulnerabilities

CVE-2026-19896: mangroup dtale Flask Session Cookie app.py build_secret_key random values

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-20
• Weakness: CWE-310

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, 3.1, 3.2, 3.3, 3.4, 3.5 (+17)

References

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

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